31321234807 has 2 divisors, whose sum is σ = 31321234808. Its totient is φ = 31321234806.

The previous prime is 31321234793. The next prime is 31321234811. The reversal of 31321234807 is 70843212313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31321234807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31321231807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660617403 + 15660617404.

It is an arithmetic number, because the mean of its divisors is an integer number (15660617404).

Almost surely, 2^31321234807 is an apocalyptic number.

31321234807 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321234807 is an equidigital number, since it uses as much as digits as its factorization.

31321234807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 31321234807 in words is "thirty-one billion, three hundred twenty-one million, two hundred thirty-four thousand, eight hundred seven".