111213012923 has 2 divisors, whose sum is σ = 111213012924. Its totient is φ = 111213012922.

The previous prime is 111213012919. The next prime is 111213012941. The reversal of 111213012923 is 329210312111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111213012923 - 2² = 111213012919 is a prime.

It is a super-2 number, since 2×111213012923² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111213012892 and 111213012901.

It is not a weakly prime, because it can be changed into another prime (111213012973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606506461 + 55606506462.

It is an arithmetic number, because the mean of its divisors is an integer number (55606506462).

Almost surely, 2^111213012923 is an apocalyptic number.

111213012923 is a deficient number, since it is larger than the sum of its proper divisors (1).

111213012923 is an equidigital number, since it uses as much as digits as its factorization.

111213012923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 111213012923 in words is "one hundred eleven billion, two hundred thirteen million, twelve thousand, nine hundred twenty-three".