125235242051 has 4 divisors (see below), whose sum is σ = 131826570600. Its totient is φ = 118643913504.

The previous prime is 125235241979. The next prime is 125235242063. The reversal of 125235242051 is 150242532521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125235242051 - 2²⁶ = 125168133187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125235241999 and 125235242017.

It is not an unprimeable number, because it can be changed into a prime (125235242081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3295664246 + ... + 3295664283.

It is an arithmetic number, because the mean of its divisors is an integer number (32956642650).

Almost surely, 2^125235242051 is an apocalyptic number.

125235242051 is a deficient number, since it is larger than the sum of its proper divisors (6591328549).

125235242051 is an equidigital number, since it uses as much as digits as its factorization.

125235242051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6591328548.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 125235242051 its reverse (150242532521), we get a palindrome (275477774572).

The spelling of 125235242051 in words is "one hundred twenty-five billion, two hundred thirty-five million, two hundred forty-two thousand, fifty-one".