11109999999931 has 8 divisors (see below), whose sum is σ = 12706390605024. Its totient is φ = 9515921331840.

The previous prime is 11109999999863. The next prime is 11109999999949. The reversal of 11109999999931 is 13999999990111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11109999999931 - 2¹⁷ = 11109999868859 is a prime.

It is a super-2 number, since 2×11109999999931² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11109999990931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577973950 + ... + 577993171.

It is an arithmetic number, because the mean of its divisors is an integer number (1588298825628).

Almost surely, 2^{11109999999931} is an apocalyptic number.

11109999999931 is a deficient number, since it is larger than the sum of its proper divisors (1596390605093).

11109999999931 is a wasteful number, since it uses less digits than its factorization.

11109999999931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155968501.

The product of its (nonzero) digits is 129140163, while the sum is 79.

The spelling of 11109999999931 in words is "eleven trillion, one hundred nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-one".