125404131299 has 2 divisors, whose sum is σ = 125404131300. Its totient is φ = 125404131298.

The previous prime is 125404131263. The next prime is 125404131361. The reversal of 125404131299 is 992131404521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125404131299 - 2¹⁶ = 125404065763 is a prime.

It is a super-2 number, since 2×125404131299² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125404131499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62702065649 + 62702065650.

It is an arithmetic number, because the mean of its divisors is an integer number (62702065650).

Almost surely, 2^125404131299 is an apocalyptic number.

125404131299 is a deficient number, since it is larger than the sum of its proper divisors (1).

125404131299 is an equidigital number, since it uses as much as digits as its factorization.

125404131299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 125404131299 in words is "one hundred twenty-five billion, four hundred four million, one hundred thirty-one thousand, two hundred ninety-nine".