112100311021 has 2 divisors, whose sum is σ = 112100311022. Its totient is φ = 112100311020.

The previous prime is 112100311013. The next prime is 112100311067. The reversal of 112100311021 is 120113001211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106462553796 + 5637757225 = 326286^2 + 75085^2 .

It is a cyclic number.

It is not a de Polignac number, because 112100311021 - 2³ = 112100311013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112100310992 and 112100311010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112100311621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56050155510 + 56050155511.

It is an arithmetic number, because the mean of its divisors is an integer number (56050155511).

Almost surely, 2^112100311021 is an apocalyptic number.

It is an amenable number.

112100311021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112100311021 is an equidigital number, since it uses as much as digits as its factorization.

112100311021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 112100311021 its reverse (120113001211), we get a palindrome (232213312232).

The spelling of 112100311021 in words is "one hundred twelve billion, one hundred million, three hundred eleven thousand, twenty-one".