2400240131231 has 4 divisors (see below), whose sum is σ = 2400290518464. Its totient is φ = 2400189744000.

The previous prime is 2400240131197. The next prime is 2400240131239. The reversal of 2400240131231 is 1321310420042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2400240131231 - 2³⁴ = 2383060262047 is a prime.

It is a super-2 number, since 2×2400240131231² (a number of 26 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 = 2400240131197 and 2400240131206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400240131239) 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, 25122095 + ... + 25217456.

It is an arithmetic number, because the mean of its divisors is an integer number (600072629616).

Almost surely, 2^{2400240131231} is an apocalyptic number.

2400240131231 is a deficient number, since it is larger than the sum of its proper divisors (50387233).

2400240131231 is an equidigital number, since it uses as much as digits as its factorization.

2400240131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50387232.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2400240131231 its reverse (1321310420042), we get a palindrome (3721550551273).

The spelling of 2400240131231 in words is "two trillion, four hundred billion, two hundred forty million, one hundred thirty-one thousand, two hundred thirty-one".