31234312223207 has 2 divisors, whose sum is σ = 31234312223208. Its totient is φ = 31234312223206.

The previous prime is 31234312223197. The next prime is 31234312223237. The reversal of 31234312223207 is 70232221343213.

It is a weak prime.

It is an emirp because it is prime and its reverse (70232221343213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31234312223207 - 2⁶ = 31234312223143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31234312223237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15617156111603 + 15617156111604.

It is an arithmetic number, because the mean of its divisors is an integer number (15617156111604).

Almost surely, 2^{31234312223207} is an apocalyptic number.

31234312223207 is a deficient number, since it is larger than the sum of its proper divisors (1).

31234312223207 is an equidigital number, since it uses as much as digits as its factorization.

31234312223207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 35.

The spelling of 31234312223207 in words is "thirty-one trillion, two hundred thirty-four billion, three hundred twelve million, two hundred twenty-three thousand, two hundred seven".