11727430631 has 12 divisors (see below), whose sum is σ = 13814802720. Its totient is φ = 9924838560.

The previous prime is 11727430573. The next prime is 11727430639. The reversal of 11727430631 is 13603472711.

It is not a de Polignac number, because 11727430631 - 2¹⁸ = 11727168487 is a prime.

It is a super-2 number, since 2×11727430631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11727430591 and 11727430600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11727430639) 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, 1510910 + ... + 1518651.

It is an arithmetic number, because the mean of its divisors is an integer number (1151233560).

Almost surely, 2^11727430631 is an apocalyptic number.

11727430631 is a deficient number, since it is larger than the sum of its proper divisors (2087372089).

11727430631 is an equidigital number, since it uses as much as digits as its factorization.

11727430631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029654 (or 3029647 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 11727430631 in words is "eleven billion, seven hundred twenty-seven million, four hundred thirty thousand, six hundred thirty-one".