2311322431 has 32 divisors (see below), whose sum is σ = 2870277120. Its totient is φ = 1833523200.

The previous prime is 2311322413. The next prime is 2311322477. The reversal of 2311322431 is 1342231132.

It is a cyclic number.

It is not a de Polignac number, because 2311322431 - 2⁷ = 2311322303 is a prime.

It is a super-2 number, since 2×2311322431² = 10684422760087499522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311322491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160071 + ... + 173911.

It is an arithmetic number, because the mean of its divisors is an integer number (89696160).

Almost surely, 2^2311322431 is an apocalyptic number.

2311322431 is a deficient number, since it is larger than the sum of its proper divisors (558954689).

2311322431 is a wasteful number, since it uses less digits than its factorization.

2311322431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13935.

The product of its digits is 864, while the sum is 22.

The square root of 2311322431 is about 48076.2148156445. The cubic root of 2311322431 is about 1322.1686174836.

Adding to 2311322431 its reverse (1342231132), we get a palindrome (3653553563).

The spelling of 2311322431 in words is "two billion, three hundred eleven million, three hundred twenty-two thousand, four hundred thirty-one".