31132021222207 has 2 divisors, whose sum is σ = 31132021222208. Its totient is φ = 31132021222206.

The previous prime is 31132021222163. The next prime is 31132021222241. The reversal of 31132021222207 is 70222212023113.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70222212023113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31132021222207 - 2¹⁹ = 31132020697919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31132021202207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566010611103 + 15566010611104.

It is an arithmetic number, because the mean of its divisors is an integer number (15566010611104).

Almost surely, 2^{31132021222207} is an apocalyptic number.

31132021222207 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132021222207 is an equidigital number, since it uses as much as digits as its factorization.

31132021222207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 31132021222207 in words is "thirty-one trillion, one hundred thirty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred seven".