125436212943523 has 2 divisors, whose sum is σ = 125436212943524. Its totient is φ = 125436212943522.

The previous prime is 125436212943491. The next prime is 125436212943553. The reversal of 125436212943523 is 325349212634521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125436212943523 - 2⁵ = 125436212943491 is a prime.

It is a super-2 number, since 2×125436212943523² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125436212943553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62718106471761 + 62718106471762.

It is an arithmetic number, because the mean of its divisors is an integer number (62718106471762).

Almost surely, 2^{125436212943523} is an apocalyptic number.

125436212943523 is a deficient number, since it is larger than the sum of its proper divisors (1).

125436212943523 is an equidigital number, since it uses as much as digits as its factorization.

125436212943523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 52.

The spelling of 125436212943523 in words is "one hundred twenty-five trillion, four hundred thirty-six billion, two hundred twelve million, nine hundred forty-three thousand, five hundred twenty-three".