2331400431 has 4 divisors (see below), whose sum is σ = 3108533912. Its totient is φ = 1554266952.

The previous prime is 2331400427. The next prime is 2331400433. The reversal of 2331400431 is 1340041332.

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

It is not a de Polignac number, because 2331400431 - 2² = 2331400427 is a prime.

It is a super-3 number, since 3×2331400431³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2331400398 and 2331400407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331400433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388566736 + ... + 388566741.

It is an arithmetic number, because the mean of its divisors is an integer number (777133478).

Almost surely, 2^2331400431 is an apocalyptic number.

2331400431 is a deficient number, since it is larger than the sum of its proper divisors (777133481).

2331400431 is an equidigital number, since it uses as much as digits as its factorization.

2331400431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777133480.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2331400431 is about 48284.5775688263. The cubic root of 2331400431 is about 1325.9860572187.

Adding to 2331400431 its reverse (1340041332), we get a palindrome (3671441763).

The spelling of 2331400431 in words is "two billion, three hundred thirty-one million, four hundred thousand, four hundred thirty-one".