31020002200049 has 2 divisors, whose sum is σ = 31020002200050. Its totient is φ = 31020002200048.

The previous prime is 31020002200013. The next prime is 31020002200139. The reversal of 31020002200049 is 94000220002013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30957817800625 + 62184399424 = 5563975^2 + 249368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31020002200049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31020002199997 and 31020002200033.

It is not a weakly prime, because it can be changed into another prime (31020002200249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510001100024 + 15510001100025.

It is an arithmetic number, because the mean of its divisors is an integer number (15510001100025).

Almost surely, 2^{31020002200049} is an apocalyptic number.

It is an amenable number.

31020002200049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020002200049 is an equidigital number, since it uses as much as digits as its factorization.

31020002200049 is an evil number, because the sum of its binary digits is even.

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

The spelling of 31020002200049 in words is "thirty-one trillion, twenty billion, two million, two hundred thousand, forty-nine".