212430402133931 has 2 divisors, whose sum is σ = 212430402133932. Its totient is φ = 212430402133930.

The previous prime is 212430402133921. The next prime is 212430402134009. The reversal of 212430402133931 is 139331204034212.

212430402133931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212430402133931 - 2⁴² = 208032355622827 is a prime.

It is a super-2 number, since 2×212430402133931² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (212430402133921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106215201066965 + 106215201066966.

It is an arithmetic number, because the mean of its divisors is an integer number (106215201066966).

Almost surely, 2^{212430402133931} is an apocalyptic number.

212430402133931 is a deficient number, since it is larger than the sum of its proper divisors (1).

212430402133931 is an equidigital number, since it uses as much as digits as its factorization.

212430402133931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 212430402133931 in words is "two hundred twelve trillion, four hundred thirty billion, four hundred two million, one hundred thirty-three thousand, nine hundred thirty-one".