11147058831 has 32 divisors (see below), whose sum is σ = 16315992000. Its totient is φ = 6737991680.

The previous prime is 11147058827. The next prime is 11147058929. The reversal of 11147058831 is 13885074111.

It is a cyclic number.

It is not a de Polignac number, because 11147058831 - 2² = 11147058827 is a prime.

It is a super-2 number, since 2×11147058831² (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 11147058831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11147058331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673645 + ... + 689993.

It is an arithmetic number, because the mean of its divisors is an integer number (509874750).

Almost surely, 2^11147058831 is an apocalyptic number.

11147058831 is a deficient number, since it is larger than the sum of its proper divisors (5168933169).

11147058831 is a wasteful number, since it uses less digits than its factorization.

11147058831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16859.

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 11147058831 in words is "eleven billion, one hundred forty-seven million, fifty-eight thousand, eight hundred thirty-one".