11754391931 has 4 divisors (see below), whose sum is σ = 11768076600. Its totient is φ = 11740707264.

The previous prime is 11754391927. The next prime is 11754391939. The reversal of 11754391931 is 13919345711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13919345711 = 1303 ⋅10682537.

It is a cyclic number.

It is not a de Polignac number, because 11754391931 - 2² = 11754391927 is a prime.

It is a super-2 number, since 2×11754391931² (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 (11754391939) 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, 6841046 + ... + 6842763.

It is an arithmetic number, because the mean of its divisors is an integer number (2942019150).

Almost surely, 2^11754391931 is an apocalyptic number.

11754391931 is a deficient number, since it is larger than the sum of its proper divisors (13684669).

11754391931 is an equidigital number, since it uses as much as digits as its factorization.

11754391931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13684668.

The product of its digits is 102060, while the sum is 44.

The spelling of 11754391931 in words is "eleven billion, seven hundred fifty-four million, three hundred ninety-one thousand, nine hundred thirty-one".