31343334440879 has 2 divisors, whose sum is σ = 31343334440880. Its totient is φ = 31343334440878.

The previous prime is 31343334440861. The next prime is 31343334441079. The reversal of 31343334440879 is 97804443334313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31343334440879 - 2¹² = 31343334436783 is a prime.

It is a super-2 number, since 2×31343334440879² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31343334440819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671667220439 + 15671667220440.

It is an arithmetic number, because the mean of its divisors is an integer number (15671667220440).

Almost surely, 2^{31343334440879} is an apocalyptic number.

31343334440879 is a deficient number, since it is larger than the sum of its proper divisors (1).

31343334440879 is an equidigital number, since it uses as much as digits as its factorization.

31343334440879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 56.

The spelling of 31343334440879 in words is "thirty-one trillion, three hundred forty-three billion, three hundred thirty-four million, four hundred forty thousand, eight hundred seventy-nine".