11172608031 has 16 divisors (see below), whose sum is σ = 16105156704. Its totient is φ = 6848692224.

The previous prime is 11172608021. The next prime is 11172608059. The reversal of 11172608031 is 13080627111.

It is not a de Polignac number, because 11172608031 - 2²⁷ = 11038390303 is a prime.

It is a super-2 number, since 2×11172608031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11172608031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11172608021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547326 + ... + 567371.

It is an arithmetic number, because the mean of its divisors is an integer number (1006572294).

Almost surely, 2^11172608031 is an apocalyptic number.

11172608031 is a deficient number, since it is larger than the sum of its proper divisors (4932548673).

11172608031 is a wasteful number, since it uses less digits than its factorization.

11172608031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114970.

The product of its (nonzero) digits is 2016, while the sum is 30.

The spelling of 11172608031 in words is "eleven billion, one hundred seventy-two million, six hundred eight thousand, thirty-one".