12604643131 has 2 divisors, whose sum is σ = 12604643132. Its totient is φ = 12604643130.

The previous prime is 12604643119. The next prime is 12604643141. The reversal of 12604643131 is 13134640621.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13134640621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12604643131 - 2¹¹ = 12604641083 is a prime.

It is a super-2 number, since 2×12604643131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12604643093 and 12604643102.

It is not a weakly prime, because it can be changed into another prime (12604643101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302321565 + 6302321566.

It is an arithmetic number, because the mean of its divisors is an integer number (6302321566).

Almost surely, 2^12604643131 is an apocalyptic number.

12604643131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12604643131 is an equidigital number, since it uses as much as digits as its factorization.

12604643131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 12604643131 in words is "twelve billion, six hundred four million, six hundred forty-three thousand, one hundred thirty-one".