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120223013111 = 172576966623
BaseRepresentation
bin110111111110111011…
…0011001100011110111
3102111022112210211222022
41233331312121203313
53432204042404421
6131121340223355
711454144515255
oct1577566314367
9374275724868
10120223013111
1146a93836183
121b37253ab5b
13b44c46b3a6
145b66bd95d5
1531d98587ab
hex1bfdd998f7

120223013111 has 4 divisors (see below), whose sum is σ = 120229996992. Its totient is φ = 120216029232.

The previous prime is 120223013083. The next prime is 120223013137. The reversal of 120223013111 is 111310322021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111310322021 = 971147529093.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120223013111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120223013111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120223013411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3466055 + ... + 3500568.

It is an arithmetic number, because the mean of its divisors is an integer number (30057499248).

Almost surely, 2120223013111 is an apocalyptic number.

120223013111 is a deficient number, since it is larger than the sum of its proper divisors (6983881).

120223013111 is an equidigital number, since it uses as much as digits as its factorization.

120223013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6983880.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120223013111 its reverse (111310322021), we get a palindrome (231533335132).

The spelling of 120223013111 in words is "one hundred twenty billion, two hundred twenty-three million, thirteen thousand, one hundred eleven".

Divisors: 1 17257 6966623 120223013111