30232931 has 2 divisors, whose sum is σ = 30232932. Its totient is φ = 30232930.

The previous prime is 30232927. The next prime is 30232963. The reversal of 30232931 is 13923203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30232931 - 2² = 30232927 is a prime.

It is a super-2 number, since 2×30232931² = 1828060233701522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30232897 and 30232906.

It is not a weakly prime, because it can be changed into another prime (30232901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116465 + 15116466.

It is an arithmetic number, because the mean of its divisors is an integer number (15116466).

Almost surely, 2^30232931 is an apocalyptic number.

30232931 is a deficient number, since it is larger than the sum of its proper divisors (1).

30232931 is an equidigital number, since it uses as much as digits as its factorization.

30232931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30232931 is about 5498.4480537694. The cubic root of 30232931 is about 311.5253679356.

It can be divided in two parts, 302 and 32931, that added together give a palindrome (33233).

The spelling of 30232931 in words is "thirty million, two hundred thirty-two thousand, nine hundred thirty-one".