1111112199931 has 2 divisors, whose sum is σ = 1111112199932. Its totient is φ = 1111112199930.

The previous prime is 1111112199887. The next prime is 1111112200021. The reversal of 1111112199931 is 1399912111111.

It is a weak prime.

It is an emirp because it is prime and its reverse (1399912111111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111112199931 - 2¹¹ = 1111112197883 is a prime.

It is a super-2 number, since 2×1111112199931² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1111142199931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555556099965 + 555556099966.

It is an arithmetic number, because the mean of its divisors is an integer number (555556099966).

Almost surely, 2^{1111112199931} is an apocalyptic number.

1111112199931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111112199931 is an equidigital number, since it uses as much as digits as its factorization.

1111112199931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 40.

The spelling of 1111112199931 in words is "one trillion, one hundred eleven billion, one hundred twelve million, one hundred ninety-nine thousand, nine hundred thirty-one".