31376001473 has 2 divisors, whose sum is σ = 31376001474. Its totient is φ = 31376001472.

The previous prime is 31376001463. The next prime is 31376001493. The reversal of 31376001473 is 37410067313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29217748624 + 2158252849 = 170932^2 + 46457^2 .

It is a cyclic number.

It is not a de Polignac number, because 31376001473 - 2⁴ = 31376001457 is a prime.

It is not a weakly prime, because it can be changed into another prime (31376001463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15688000736 + 15688000737.

It is an arithmetic number, because the mean of its divisors is an integer number (15688000737).

Almost surely, 2^31376001473 is an apocalyptic number.

It is an amenable number.

31376001473 is a deficient number, since it is larger than the sum of its proper divisors (1).

31376001473 is an equidigital number, since it uses as much as digits as its factorization.

31376001473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 35.

Adding to 31376001473 its reverse (37410067313), we get a palindrome (68786068786).

The spelling of 31376001473 in words is "thirty-one billion, three hundred seventy-six million, one thousand, four hundred seventy-three".