125252411131021 has 8 divisors (see below), whose sum is σ = 125545258238400. Its totient is φ = 124959813577632.

The previous prime is 125252411131013. The next prime is 125252411131069. The reversal of 125252411131021 is 120131114252521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125252411131021 - 2³ = 125252411131013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125252411131091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61383496 + ... + 63391153.

It is an arithmetic number, because the mean of its divisors is an integer number (15693157279800).

Almost surely, 2^{125252411131021} is an apocalyptic number.

It is an amenable number.

125252411131021 is a deficient number, since it is larger than the sum of its proper divisors (292847107379).

125252411131021 is a wasteful number, since it uses less digits than its factorization.

125252411131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124776995.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 125252411131021 its reverse (120131114252521), we get a palindrome (245383525383542).

The spelling of 125252411131021 in words is "one hundred twenty-five trillion, two hundred fifty-two billion, four hundred eleven million, one hundred thirty-one thousand, twenty-one".