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120102111012 = 223131017622627
BaseRepresentation
bin110111111011010100…
…1001100011100100100
3102111000010022101110210
41233312221030130210
53431432120023022
6131101341015420
711451146046102
oct1576651143444
9374003271423
10120102111012
1146a31568694
121b339b54570
13b4303b99a0
145b54b26c72
1531cde25a0c
hex1bf6a4c724

120102111012 has 48 divisors (see below), whose sum is σ = 304783157952. Its totient is φ = 36588604800.

The previous prime is 120102111011. The next prime is 120102111013. The reversal of 120102111012 is 210111201021.

It is an interprime number because it is at equal distance from previous prime (120102111011) and next prime (120102111013).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (120102111011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3795558 + ... + 3827069.

It is an arithmetic number, because the mean of its divisors is an integer number (6349649124).

Almost surely, 2120102111012 is an apocalyptic number.

120102111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120102111012 is an abundant number, since it is smaller than the sum of its proper divisors (184681046940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120102111012 is a wasteful number, since it uses less digits than its factorization.

120102111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622748 (or 7622746 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120102111012 its reverse (210111201021), we get a palindrome (330213312033).

Subtracting 120102111012 from its reverse (210111201021), we obtain a palindrome (90009090009).

The spelling of 120102111012 in words is "one hundred twenty billion, one hundred two million, one hundred eleven thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 101 156 202 303 404 606 1212 1313 2626 3939 5252 7878 15756 7622627 15245254 22867881 30490508 45735762 91471524 99094151 198188302 297282453 396376604 594564906 769885327 1189129812 1539770654 2309655981 3079541308 4619311962 9238623924 10008509251 20017018502 30025527753 40034037004 60051055506 120102111012