31231121332339 has 2 divisors, whose sum is σ = 31231121332340. Its totient is φ = 31231121332338.

The previous prime is 31231121332303. The next prime is 31231121332357. The reversal of 31231121332339 is 93323312113213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31231121332339 - 2³⁵ = 31196761593971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31231121332298 and 31231121332307.

It is not a weakly prime, because it can be changed into another prime (31231121332039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15615560666169 + 15615560666170.

It is an arithmetic number, because the mean of its divisors is an integer number (15615560666170).

Almost surely, 2^{31231121332339} is an apocalyptic number.

31231121332339 is a deficient number, since it is larger than the sum of its proper divisors (1).

31231121332339 is an equidigital number, since it uses as much as digits as its factorization.

31231121332339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 37.

The spelling of 31231121332339 in words is "thirty-one trillion, two hundred thirty-one billion, one hundred twenty-one million, three hundred thirty-two thousand, three hundred thirty-nine".