31334043413 has 2 divisors, whose sum is σ = 31334043414. Its totient is φ = 31334043412.

The previous prime is 31334043407. The next prime is 31334043427. The reversal of 31334043413 is 31434043313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24418125169 + 6915918244 = 156263^2 + 83162^2 .

It is a cyclic number.

It is not a de Polignac number, because 31334043413 - 2⁸ = 31334043157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31334043473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15667021706 + 15667021707.

It is an arithmetic number, because the mean of its divisors is an integer number (15667021707).

Almost surely, 2^31334043413 is an apocalyptic number.

It is an amenable number.

31334043413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31334043413 is an equidigital number, since it uses as much as digits as its factorization.

31334043413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 31334043413 its reverse (31434043313), we get a palindrome (62768086726).

The spelling of 31334043413 in words is "thirty-one billion, three hundred thirty-four million, forty-three thousand, four hundred thirteen".