11112031913 has 2 divisors, whose sum is σ = 11112031914. Its totient is φ = 11112031912.

The previous prime is 11112031897. The next prime is 11112031939. The reversal of 11112031913 is 31913021111.

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., 9994600729 + 1117431184 = 99973^2 + 33428^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112031913 - 2⁴ = 11112031897 is a prime.

It is not a weakly prime, because it can be changed into another prime (11112031943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556015956 + 5556015957.

It is an arithmetic number, because the mean of its divisors is an integer number (5556015957).

Almost surely, 2^11112031913 is an apocalyptic number.

It is an amenable number.

11112031913 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112031913 is an equidigital number, since it uses as much as digits as its factorization.

11112031913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 11112031913 in words is "eleven billion, one hundred twelve million, thirty-one thousand, nine hundred thirteen".