125051352121 has 2 divisors, whose sum is σ = 125051352122. Its totient is φ = 125051352120.

The previous prime is 125051352119. The next prime is 125051352161. The reversal of 125051352121 is 121253150521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125047104400 + 4247721 = 353620^2 + 2061^2 .

It is an emirp because it is prime and its reverse (121253150521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125051352121 - 2¹ = 125051352119 is a prime.

Together with 125051352119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 125051352121.

It is not a weakly prime, because it can be changed into another prime (125051352161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62525676060 + 62525676061.

It is an arithmetic number, because the mean of its divisors is an integer number (62525676061).

Almost surely, 2^125051352121 is an apocalyptic number.

It is an amenable number.

125051352121 is a deficient number, since it is larger than the sum of its proper divisors (1).

125051352121 is an equidigital number, since it uses as much as digits as its factorization.

125051352121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 125051352121 in words is "one hundred twenty-five billion, fifty-one million, three hundred fifty-two thousand, one hundred twenty-one".