31652625313 has 2 divisors, whose sum is σ = 31652625314. Its totient is φ = 31652625312.

The previous prime is 31652625289. The next prime is 31652625349. The reversal of 31652625313 is 31352625613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23973257889 + 7679367424 = 154833^2 + 87632^2 .

It is an emirp because it is prime and its reverse (31352625613) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31652625313 is a prime.

It is not a weakly prime, because it can be changed into another prime (31652625383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15826312656 + 15826312657.

It is an arithmetic number, because the mean of its divisors is an integer number (15826312657).

Almost surely, 2^31652625313 is an apocalyptic number.

It is an amenable number.

31652625313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31652625313 is an equidigital number, since it uses as much as digits as its factorization.

31652625313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 37.

The spelling of 31652625313 in words is "thirty-one billion, six hundred fifty-two million, six hundred twenty-five thousand, three hundred thirteen".