2230531931 has 2 divisors, whose sum is σ = 2230531932. Its totient is φ = 2230531930.

The previous prime is 2230531921. The next prime is 2230531943. The reversal of 2230531931 is 1391350322.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2230531931 is a prime.

It is a super-2 number, since 2×2230531931² = 9950545390421177522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2230531894 and 2230531903.

It is not a weakly prime, because it can be changed into another prime (2230531921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115265965 + 1115265966.

It is an arithmetic number, because the mean of its divisors is an integer number (1115265966).

Almost surely, 2^2230531931 is an apocalyptic number.

2230531931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2230531931 is an equidigital number, since it uses as much as digits as its factorization.

2230531931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 2230531931 is about 47228.5076092819. The cubic root of 2230531931 is about 1306.5804276420.

The spelling of 2230531931 in words is "two billion, two hundred thirty million, five hundred thirty-one thousand, nine hundred thirty-one".