31404014573 has 2 divisors, whose sum is σ = 31404014574. Its totient is φ = 31404014572.

The previous prime is 31404014569. The next prime is 31404014611. The reversal of 31404014573 is 37541040413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23171537284 + 8232477289 = 152222^2 + 90733^2 .

It is an emirp because it is prime and its reverse (37541040413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31404014573 - 2² = 31404014569 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31404013573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15702007286 + 15702007287.

It is an arithmetic number, because the mean of its divisors is an integer number (15702007287).

Almost surely, 2^31404014573 is an apocalyptic number.

It is an amenable number.

31404014573 is a deficient number, since it is larger than the sum of its proper divisors (1).

31404014573 is an equidigital number, since it uses as much as digits as its factorization.

31404014573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 31404014573 its reverse (37541040413), we get a palindrome (68945054986).

The spelling of 31404014573 in words is "thirty-one billion, four hundred four million, fourteen thousand, five hundred seventy-three".