2331040420531 has 4 divisors (see below), whose sum is σ = 2375022315312. Its totient is φ = 2287058525752.

The previous prime is 2331040420517. The next prime is 2331040420547. The reversal of 2331040420531 is 1350240401332.

It is a happy number.

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 2331040420531 - 2¹⁵ = 2331040387763 is a prime.

It is a super-2 number, since 2×2331040420531² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2331040420531.

It is not an unprimeable number, because it can be changed into a prime (2331040420231) 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, 21990947311 + ... + 21990947416.

It is an arithmetic number, because the mean of its divisors is an integer number (593755578828).

Almost surely, 2^{2331040420531} is an apocalyptic number.

2331040420531 is a deficient number, since it is larger than the sum of its proper divisors (43981894781).

2331040420531 is an equidigital number, since it uses as much as digits as its factorization.

2331040420531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43981894780.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 2331040420531 its reverse (1350240401332), we get a palindrome (3681280821863).

The spelling of 2331040420531 in words is "two trillion, three hundred thirty-one billion, forty million, four hundred twenty thousand, five hundred thirty-one".