125413357421 has 8 divisors (see below), whose sum is σ = 136991572704. Its totient is φ = 113864642320.

The previous prime is 125413357417. The next prime is 125413357427. The reversal of 125413357421 is 124753314521.

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

It is not a de Polignac number, because 125413357421 - 2² = 125413357417 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 (125413357427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7366151 + ... + 7383156.

It is an arithmetic number, because the mean of its divisors is an integer number (17123946588).

Almost surely, 2^125413357421 is an apocalyptic number.

125413357421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125413357421 is a deficient number, since it is larger than the sum of its proper divisors (11578215283).

125413357421 is a wasteful number, since it uses less digits than its factorization.

125413357421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14750091.

The product of its digits is 100800, while the sum is 38.

The spelling of 125413357421 in words is "one hundred twenty-five billion, four hundred thirteen million, three hundred fifty-seven thousand, four hundred twenty-one".