101112980921 has 2 divisors, whose sum is σ = 101112980922. Its totient is φ = 101112980920.

The previous prime is 101112980887. The next prime is 101112980959. The reversal of 101112980921 is 129089211101.

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., 70298689321 + 30814291600 = 265139^2 + 175540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101112980921 is a prime.

It is not a weakly prime, because it can be changed into another prime (101112980321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50556490460 + 50556490461.

It is an arithmetic number, because the mean of its divisors is an integer number (50556490461).

Almost surely, 2^101112980921 is an apocalyptic number.

It is an amenable number.

101112980921 is a deficient number, since it is larger than the sum of its proper divisors (1).

101112980921 is an equidigital number, since it uses as much as digits as its factorization.

101112980921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 101112980921 in words is "one hundred one billion, one hundred twelve million, nine hundred eighty thousand, nine hundred twenty-one".