3111172056 has 24 divisors (see below), whose sum is σ = 8426091180. Its totient is φ = 1037057328.

The previous prime is 3111172037. The next prime is 3111172063. The reversal of 3111172056 is 6502711113.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21605290 + ... + 21605433.

Almost surely, 2^3111172056 is an apocalyptic number.

3111172056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3111172056 is an abundant number, since it is smaller than the sum of its proper divisors (5314919124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3111172056 is a wasteful number, since it uses less digits than its factorization.

3111172056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43210735 (or 43210728 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 3111172056 is about 55777.8814226571. The cubic root of 3111172056 is about 1459.8492457090.

Adding to 3111172056 its reverse (6502711113), we get a palindrome (9613883169).

The spelling of 3111172056 in words is "three billion, one hundred eleven million, one hundred seventy-two thousand, fifty-six".