31445004254009 has 2 divisors, whose sum is σ = 31445004254010. Its totient is φ = 31445004254008.

The previous prime is 31445004253973. The next prime is 31445004254137. The reversal of 31445004254009 is 90045240054413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28231847623225 + 3213156630784 = 5313365^2 + 1792528^2 .

It is a cyclic number.

It is not a de Polignac number, because 31445004254009 - 2¹² = 31445004249913 is a prime.

It is not a weakly prime, because it can be changed into another prime (31445004224009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15722502127004 + 15722502127005.

It is an arithmetic number, because the mean of its divisors is an integer number (15722502127005).

Almost surely, 2^{31445004254009} is an apocalyptic number.

It is an amenable number.

31445004254009 is a deficient number, since it is larger than the sum of its proper divisors (1).

31445004254009 is an equidigital number, since it uses as much as digits as its factorization.

31445004254009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 31445004254009 in words is "thirty-one trillion, four hundred forty-five billion, four million, two hundred fifty-four thousand, nine".