2331320455 has 4 divisors (see below), whose sum is σ = 2797584552. Its totient is φ = 1865056360.

The previous prime is 2331320447. The next prime is 2331320471. The reversal of 2331320455 is 5540231332.

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

It is not a de Polignac number, because 2331320455 - 2³ = 2331320447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233132041 + ... + 233132050.

It is an arithmetic number, because the mean of its divisors is an integer number (699396138).

Almost surely, 2^2331320455 is an apocalyptic number.

2331320455 is a deficient number, since it is larger than the sum of its proper divisors (466264097).

2331320455 is an equidigital number, since it uses as much as digits as its factorization.

2331320455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466264096.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2331320455 is about 48283.7493883812. The cubic root of 2331320455 is about 1325.9708949051.

Adding to 2331320455 its reverse (5540231332), we get a palindrome (7871551787).

The spelling of 2331320455 in words is "two billion, three hundred thirty-one million, three hundred twenty thousand, four hundred fifty-five".