112102021957 has 2 divisors, whose sum is σ = 112102021958. Its totient is φ = 112102021956.

The previous prime is 112102021903. The next prime is 112102022017. The reversal of 112102021957 is 759120201211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112095057636 + 6964321 = 334806^2 + 2639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112102021957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112102022957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56051010978 + 56051010979.

It is an arithmetic number, because the mean of its divisors is an integer number (56051010979).

Almost surely, 2^112102021957 is an apocalyptic number.

It is an amenable number.

112102021957 is a deficient number, since it is larger than the sum of its proper divisors (1).

112102021957 is an equidigital number, since it uses as much as digits as its factorization.

112102021957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 112102021957 in words is "one hundred twelve billion, one hundred two million, twenty-one thousand, nine hundred fifty-seven".