31312002322043 has 2 divisors, whose sum is σ = 31312002322044. Its totient is φ = 31312002322042.

The previous prime is 31312002322031. The next prime is 31312002322099. The reversal of 31312002322043 is 34022320021313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31312002322043 - 2⁶ = 31312002321979 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312002322243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656001161021 + 15656001161022.

It is an arithmetic number, because the mean of its divisors is an integer number (15656001161022).

Almost surely, 2^{31312002322043} is an apocalyptic number.

31312002322043 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312002322043 is an equidigital number, since it uses as much as digits as its factorization.

31312002322043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31312002322043 its reverse (34022320021313), we get a palindrome (65334322343356).

The spelling of 31312002322043 in words is "thirty-one trillion, three hundred twelve billion, two million, three hundred twenty-two thousand, forty-three".