11291725931 has 4 divisors (see below), whose sum is σ = 11294458200. Its totient is φ = 11288993664.

The previous prime is 11291725927. The next prime is 11291725933. The reversal of 11291725931 is 13952719211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11291725931 - 2² = 11291725927 is a prime.

It is a super-2 number, since 2×11291725931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11291725933) 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, 1359926 + ... + 1368203.

It is an arithmetic number, because the mean of its divisors is an integer number (2823614550).

Almost surely, 2^11291725931 is an apocalyptic number.

11291725931 is a deficient number, since it is larger than the sum of its proper divisors (2732269).

11291725931 is an equidigital number, since it uses as much as digits as its factorization.

11291725931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732268.

The product of its digits is 34020, while the sum is 41.

The spelling of 11291725931 in words is "eleven billion, two hundred ninety-one million, seven hundred twenty-five thousand, nine hundred thirty-one".