125953223731 has 2 divisors, whose sum is σ = 125953223732. Its totient is φ = 125953223730.

The previous prime is 125953223723. The next prime is 125953223743. The reversal of 125953223731 is 137322359521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125953223731 - 2³ = 125953223723 is a prime.

It is a super-2 number, since 2×125953223731² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125953223791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62976611865 + 62976611866.

It is an arithmetic number, because the mean of its divisors is an integer number (62976611866).

Almost surely, 2^125953223731 is an apocalyptic number.

125953223731 is a deficient number, since it is larger than the sum of its proper divisors (1).

125953223731 is an equidigital number, since it uses as much as digits as its factorization.

125953223731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 43.

The spelling of 125953223731 in words is "one hundred twenty-five billion, nine hundred fifty-three million, two hundred twenty-three thousand, seven hundred thirty-one".