31104635537 has 2 divisors, whose sum is σ = 31104635538. Its totient is φ = 31104635536.

The previous prime is 31104635503. The next prime is 31104635621. The reversal of 31104635537 is 73553640113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26012528656 + 5092106881 = 161284^2 + 71359^2 .

It is an emirp because it is prime and its reverse (73553640113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31104635537 - 2¹⁴ = 31104619153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31104635537.

It is not a weakly prime, because it can be changed into another prime (31104634537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15552317768 + 15552317769.

It is an arithmetic number, because the mean of its divisors is an integer number (15552317769).

Almost surely, 2^31104635537 is an apocalyptic number.

It is an amenable number.

31104635537 is a deficient number, since it is larger than the sum of its proper divisors (1).

31104635537 is an equidigital number, since it uses as much as digits as its factorization.

31104635537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 31104635537 in words is "thirty-one billion, one hundred four million, six hundred thirty-five thousand, five hundred thirty-seven".