31043104311313 has 16 divisors (see below), whose sum is σ = 32976905018256. Its totient is φ = 29121289666560.

The previous prime is 31043104311283. The next prime is 31043104311337. The reversal of 31043104311313 is 31311340134013.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 20788737489 + 31022315573824 = 144183^2 + 5569768^2 .

It is a cyclic number.

It is not a de Polignac number, because 31043104311313 - 2⁴¹ = 28844081055761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31043104371313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65921373 + ... + 66390613.

It is an arithmetic number, because the mean of its divisors is an integer number (2061056563641).

Almost surely, 2^{31043104311313} is an apocalyptic number.

It is an amenable number.

31043104311313 is a deficient number, since it is larger than the sum of its proper divisors (1933800706943).

31043104311313 is a wasteful number, since it uses less digits than its factorization.

31043104311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482004.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 31043104311313 its reverse (31311340134013), we get a palindrome (62354444445326).

The spelling of 31043104311313 in words is "thirty-one trillion, forty-three billion, one hundred four million, three hundred eleven thousand, three hundred thirteen".