31112302220977 has 2 divisors, whose sum is σ = 31112302220978. Its totient is φ = 31112302220976.

The previous prime is 31112302220969. The next prime is 31112302220983. The reversal of 31112302220977 is 77902220321113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18169835486881 + 12942466734096 = 4262609^2 + 3597564^2 .

It is a cyclic number.

It is not a de Polignac number, because 31112302220977 - 2³ = 31112302220969 is a prime.

It is not a weakly prime, because it can be changed into another prime (31112302220917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556151110488 + 15556151110489.

It is an arithmetic number, because the mean of its divisors is an integer number (15556151110489).

Almost surely, 2^{31112302220977} is an apocalyptic number.

It is an amenable number.

31112302220977 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112302220977 is an equidigital number, since it uses as much as digits as its factorization.

31112302220977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 31112302220977 in words is "thirty-one trillion, one hundred twelve billion, three hundred two million, two hundred twenty thousand, nine hundred seventy-seven".