31892744201 has 2 divisors, whose sum is σ = 31892744202. Its totient is φ = 31892744200.

The previous prime is 31892744197. The next prime is 31892744207. The reversal of 31892744201 is 10244729813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25824490000 + 6068254201 = 160700^2 + 77899^2 .

It is an emirp because it is prime and its reverse (10244729813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31892744201 - 2² = 31892744197 is a prime.

It is not a weakly prime, because it can be changed into another prime (31892744207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15946372100 + 15946372101.

It is an arithmetic number, because the mean of its divisors is an integer number (15946372101).

Almost surely, 2^31892744201 is an apocalyptic number.

It is an amenable number.

31892744201 is a deficient number, since it is larger than the sum of its proper divisors (1).

31892744201 is an equidigital number, since it uses as much as digits as its factorization.

31892744201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 31892744201 in words is "thirty-one billion, eight hundred ninety-two million, seven hundred forty-four thousand, two hundred one".