31003212007 has 2 divisors, whose sum is σ = 31003212008. Its totient is φ = 31003212006.

The previous prime is 31003211989. The next prime is 31003212017. The reversal of 31003212007 is 70021230013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31003212007 - 2¹⁹ = 31002687719 is a prime.

It is a super-2 number, since 2×31003212007² (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 (31003212017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15501606003 + 15501606004.

It is an arithmetic number, because the mean of its divisors is an integer number (15501606004).

Almost surely, 2^31003212007 is an apocalyptic number.

31003212007 is a deficient number, since it is larger than the sum of its proper divisors (1).

31003212007 is an equidigital number, since it uses as much as digits as its factorization.

31003212007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The spelling of 31003212007 in words is "thirty-one billion, three million, two hundred twelve thousand, seven".