11725993331 has 12 divisors (see below), whose sum is σ = 13200915168. Its totient is φ = 10353379344.

The previous prime is 11725993327. The next prime is 11725993333. The reversal of 11725993331 is 13339952711.

It is not a de Polignac number, because 11725993331 - 2² = 11725993327 is a prime.

It is a super-2 number, since 2×11725993331² (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 (11725993333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 845675 + ... + 859428.

It is an arithmetic number, because the mean of its divisors is an integer number (1100076264).

Almost surely, 2^11725993331 is an apocalyptic number.

11725993331 is a deficient number, since it is larger than the sum of its proper divisors (1474921837).

11725993331 is a wasteful number, since it uses less digits than its factorization.

11725993331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705162 (or 1705139 counting only the distinct ones).

The product of its digits is 153090, while the sum is 44.

The spelling of 11725993331 in words is "eleven billion, seven hundred twenty-five million, nine hundred ninety-three thousand, three hundred thirty-one".