13131000013237 has 2 divisors, whose sum is σ = 13131000013238. Its totient is φ = 13131000013236.

The previous prime is 13131000013181. The next prime is 13131000013249. The reversal of 13131000013237 is 73231000013131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9971284014756 + 3159715998481 = 3157734^2 + 1777559^2 .

It is a cyclic number.

It is not a de Polignac number, because 13131000013237 - 2⁴³ = 4334906991029 is a prime.

It is a super-2 number, since 2×13131000013237² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131000013267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565500006618 + 6565500006619.

It is an arithmetic number, because the mean of its divisors is an integer number (6565500006619).

Almost surely, 2^{13131000013237} is an apocalyptic number.

It is an amenable number.

13131000013237 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131000013237 is an equidigital number, since it uses as much as digits as its factorization.

13131000013237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

Adding to 13131000013237 its reverse (73231000013131), we get a palindrome (86362000026368).

The spelling of 13131000013237 in words is "thirteen trillion, one hundred thirty-one billion, thirteen thousand, two hundred thirty-seven".