31013104414321 has 4 divisors (see below), whose sum is σ = 31013745852132. Its totient is φ = 31012462976512.

The previous prime is 31013104414309. The next prime is 31013104414343. The reversal of 31013104414321 is 12341440131013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1397348589025 + 29615755825296 = 1182095^2 + 5442036^2 .

It is a cyclic number.

It is not a de Polignac number, because 31013104414321 - 2²³ = 31013096025713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31013104414321.

It is not an unprimeable number, because it can be changed into a prime (31013104414421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320646376 + ... + 320743081.

It is an arithmetic number, because the mean of its divisors is an integer number (7753436463033).

Almost surely, 2^{31013104414321} is an apocalyptic number.

It is an amenable number.

31013104414321 is a deficient number, since it is larger than the sum of its proper divisors (641437811).

31013104414321 is an equidigital number, since it uses as much as digits as its factorization.

31013104414321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641437810.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 31013104414321 its reverse (12341440131013), we get a palindrome (43354544545334).

The spelling of 31013104414321 in words is "thirty-one trillion, thirteen billion, one hundred four million, four hundred fourteen thousand, three hundred twenty-one".