31014413321 has 4 divisors (see below), whose sum is σ = 31439268372. Its totient is φ = 30589558272.

The previous prime is 31014413293. The next prime is 31014413329. The reversal of 31014413321 is 12331441013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12331441013 = 89 ⋅138555517.

It can be written as a sum of positive squares in 2 ways, for example, as 8178670096 + 22835743225 = 90436^2 + 151115^2 .

It is a cyclic number.

It is not a de Polignac number, because 31014413321 - 2¹⁸ = 31014151177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31014413329) 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, 212427416 + ... + 212427561.

It is an arithmetic number, because the mean of its divisors is an integer number (7859817093).

Almost surely, 2^31014413321 is an apocalyptic number.

It is an amenable number.

31014413321 is a deficient number, since it is larger than the sum of its proper divisors (424855051).

31014413321 is an equidigital number, since it uses as much as digits as its factorization.

31014413321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424855050.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31014413321 its reverse (12331441013), we get a palindrome (43345854334).

The spelling of 31014413321 in words is "thirty-one billion, fourteen million, four hundred thirteen thousand, three hundred twenty-one".