30405297031 has 2 divisors, whose sum is σ = 30405297032. Its totient is φ = 30405297030.

The previous prime is 30405297019. The next prime is 30405297053. The reversal of 30405297031 is 13079250403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30405297031 - 2⁷ = 30405296903 is a prime.

It is a super-2 number, since 2×30405297031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30405297071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15202648515 + 15202648516.

It is an arithmetic number, because the mean of its divisors is an integer number (15202648516).

Almost surely, 2^30405297031 is an apocalyptic number.

30405297031 is a deficient number, since it is larger than the sum of its proper divisors (1).

30405297031 is an equidigital number, since it uses as much as digits as its factorization.

30405297031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 30405297031 in words is "thirty billion, four hundred five million, two hundred ninety-seven thousand, thirty-one".