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120112232013 = 3213345803557
BaseRepresentation
bin110111111011100111…
…1110011011001001101
3102111000211100120212200
41233313033303121031
53431442212411023
6131102341552113
711451331061304
oct1576717633115
9374024316780
10120112232013
1146a37250754
121b341415639
13b432521647
145b561dd43b
1531cec74743
hex1bf73f364d

120112232013 has 6 divisors (see below), whose sum is σ = 173495446254. Its totient is φ = 80074821336.

The previous prime is 120112231997. The next prime is 120112232029. The reversal of 120112232013 is 310232211021.

It is an interprime number because it is at equal distance from previous prime (120112231997) and next prime (120112232029).

It can be written as a sum of positive squares in only one way, i.e., 104560396164 + 15551835849 = 323358^2 + 124707^2 .

It is not a de Polignac number, because 120112232013 - 24 = 120112231997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112232083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6672901770 + ... + 6672901787.

It is an arithmetic number, because the mean of its divisors is an integer number (28915907709).

Almost surely, 2120112232013 is an apocalyptic number.

It is an amenable number.

120112232013 is a deficient number, since it is larger than the sum of its proper divisors (53383214241).

120112232013 is a wasteful number, since it uses less digits than its factorization.

120112232013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13345803563 (or 13345803560 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 120112232013 its reverse (310232211021), we get a palindrome (430344443034).

The spelling of 120112232013 in words is "one hundred twenty billion, one hundred twelve million, two hundred thirty-two thousand, thirteen".

Divisors: 1 3 9 13345803557 40037410671 120112232013