31120012220039 has 2 divisors, whose sum is σ = 31120012220040. Its totient is φ = 31120012220038.

The previous prime is 31120012219991. The next prime is 31120012220071. The reversal of 31120012220039 is 93002221002113.

It is a strong prime.

It is an emirp because it is prime and its reverse (93002221002113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31120012220039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31120012220239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15560006110019 + 15560006110020.

It is an arithmetic number, because the mean of its divisors is an integer number (15560006110020).

Almost surely, 2^{31120012220039} is an apocalyptic number.

31120012220039 is a deficient number, since it is larger than the sum of its proper divisors (1).

31120012220039 is an equidigital number, since it uses as much as digits as its factorization.

31120012220039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 31120012220039 in words is "thirty-one trillion, one hundred twenty billion, twelve million, two hundred twenty thousand, thirty-nine".