125243442293 has 2 divisors, whose sum is σ = 125243442294. Its totient is φ = 125243442292.

The previous prime is 125243442251. The next prime is 125243442319. The reversal of 125243442293 is 392244342521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70139166244 + 55104276049 = 264838^2 + 234743^2 .

It is an emirp because it is prime and its reverse (392244342521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125243442293 - 2²² = 125239247989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125243442293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125243442893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62621721146 + 62621721147.

It is an arithmetic number, because the mean of its divisors is an integer number (62621721147).

Almost surely, 2^125243442293 is an apocalyptic number.

It is an amenable number.

125243442293 is a deficient number, since it is larger than the sum of its proper divisors (1).

125243442293 is an equidigital number, since it uses as much as digits as its factorization.

125243442293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 41.

The spelling of 125243442293 in words is "one hundred twenty-five billion, two hundred forty-three million, four hundred forty-two thousand, two hundred ninety-three".