31230405007 has 2 divisors, whose sum is σ = 31230405008. Its totient is φ = 31230405006.

The previous prime is 31230404987. The next prime is 31230405023. The reversal of 31230405007 is 70050403213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31230405007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31230405097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15615202503 + 15615202504.

It is an arithmetic number, because the mean of its divisors is an integer number (15615202504).

Almost surely, 2^31230405007 is an apocalyptic number.

31230405007 is a deficient number, since it is larger than the sum of its proper divisors (1).

31230405007 is an equidigital number, since it uses as much as digits as its factorization.

31230405007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The spelling of 31230405007 in words is "thirty-one billion, two hundred thirty million, four hundred five thousand, seven".