31322000130077 has 2 divisors, whose sum is σ = 31322000130078. Its totient is φ = 31322000130076.

The previous prime is 31322000130073. The next prime is 31322000130089. The reversal of 31322000130077 is 77003100022313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30381383348761 + 940616781316 = 5511931^2 + 969854^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322000130077 - 2² = 31322000130073 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322000130073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661000065038 + 15661000065039.

It is an arithmetic number, because the mean of its divisors is an integer number (15661000065039).

Almost surely, 2^{31322000130077} is an apocalyptic number.

It is an amenable number.

31322000130077 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322000130077 is an equidigital number, since it uses as much as digits as its factorization.

31322000130077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 29.

The spelling of 31322000130077 in words is "thirty-one trillion, three hundred twenty-two billion, one hundred thirty thousand, seventy-seven".