13240252131 has 8 divisors (see below), whose sum is σ = 17752294080. Its totient is φ = 8777522472.

The previous prime is 13240252061. The next prime is 13240252133. The reversal of 13240252131 is 13125204231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13240252131 - 2²² = 13236057827 is a prime.

It is a super-2 number, since 2×13240252131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13240252133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12327445 + ... + 12328518.

It is an arithmetic number, because the mean of its divisors is an integer number (2219036760).

Almost surely, 2^13240252131 is an apocalyptic number.

13240252131 is a deficient number, since it is larger than the sum of its proper divisors (4512041949).

13240252131 is a wasteful number, since it uses less digits than its factorization.

13240252131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24656145.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 13240252131 its reverse (13125204231), we get a palindrome (26365456362).

The spelling of 13240252131 in words is "thirteen billion, two hundred forty million, two hundred fifty-two thousand, one hundred thirty-one".