125247646331 has 2 divisors, whose sum is σ = 125247646332. Its totient is φ = 125247646330.

The previous prime is 125247646327. The next prime is 125247646373. The reversal of 125247646331 is 133646742521.

It is a weak prime.

It is an emirp because it is prime and its reverse (133646742521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125247646331 - 2² = 125247646327 is a prime.

It is a super-2 number, since 2×125247646331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125247546331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62623823165 + 62623823166.

It is an arithmetic number, because the mean of its divisors is an integer number (62623823166).

Almost surely, 2^125247646331 is an apocalyptic number.

125247646331 is a deficient number, since it is larger than the sum of its proper divisors (1).

125247646331 is an equidigital number, since it uses as much as digits as its factorization.

125247646331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 44.

The spelling of 125247646331 in words is "one hundred twenty-five billion, two hundred forty-seven million, six hundred forty-six thousand, three hundred thirty-one".