11112190931 has 4 divisors (see below), whose sum is σ = 11112456600. Its totient is φ = 11111925264.

The previous prime is 11112190919. The next prime is 11112190933. The reversal of 11112190931 is 13909121111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13909121111 = 14107 ⋅985973.

It is a cyclic number.

It is not a de Polignac number, because 11112190931 - 2⁶ = 11112190867 is a prime.

It is a super-2 number, since 2×11112190931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112190894 and 11112190903.

It is not an unprimeable number, because it can be changed into a prime (11112190933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54821 + ... + 158838.

It is an arithmetic number, because the mean of its divisors is an integer number (2778114150).

Almost surely, 2^11112190931 is an apocalyptic number.

11112190931 is a deficient number, since it is larger than the sum of its proper divisors (265669).

11112190931 is an equidigital number, since it uses as much as digits as its factorization.

11112190931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265668.

The product of its (nonzero) digits is 486, while the sum is 29.

The spelling of 11112190931 in words is "eleven billion, one hundred twelve million, one hundred ninety thousand, nine hundred thirty-one".