13240232131 has 12 divisors (see below), whose sum is σ = 15777561240. Its totient is φ = 11071969440.

The previous prime is 13240232101. The next prime is 13240232171. The reversal of 13240232131 is 13123204231.

13240232131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13240232131 - 2¹³ = 13240223939 is a prime.

It is a super-2 number, since 2×13240232131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13240232101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3293221 + ... + 3297238.

It is an arithmetic number, because the mean of its divisors is an integer number (1314796770).

Almost surely, 2^13240232131 is an apocalyptic number.

13240232131 is a deficient number, since it is larger than the sum of its proper divisors (2537329109).

13240232131 is an equidigital number, since it uses as much as digits as its factorization.

13240232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590514 (or 6590507 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13240232131 its reverse (13123204231), we get a palindrome (26363436362).

The spelling of 13240232131 in words is "thirteen billion, two hundred forty million, two hundred thirty-two thousand, one hundred thirty-one".