31330880039 has 2 divisors, whose sum is σ = 31330880040. Its totient is φ = 31330880038.

The previous prime is 31330879991. The next prime is 31330880047. The reversal of 31330880039 is 93008803313.

It is a strong prime.

It is an emirp because it is prime and its reverse (93008803313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31330880039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31330879984 and 31330880011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31330880059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15665440019 + 15665440020.

It is an arithmetic number, because the mean of its divisors is an integer number (15665440020).

Almost surely, 2^31330880039 is an apocalyptic number.

31330880039 is a deficient number, since it is larger than the sum of its proper divisors (1).

31330880039 is an equidigital number, since it uses as much as digits as its factorization.

31330880039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 31330880039 in words is "thirty-one billion, three hundred thirty million, eight hundred eighty thousand, thirty-nine".