125450251121 has 8 divisors (see below), whose sum is σ = 135158063040. Its totient is φ = 115750695312.

The previous prime is 125450251111. The next prime is 125450251133. The reversal of 125450251121 is 121152054521.

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 125450251121 - 2¹⁴ = 125450234737 is a prime.

It is a super-3 number, since 3×125450251121³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (125450251111) 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, 2032445 + ... + 2093258.

It is an arithmetic number, because the mean of its divisors is an integer number (16894757880).

Almost surely, 2^125450251121 is an apocalyptic number.

It is an amenable number.

125450251121 is a deficient number, since it is larger than the sum of its proper divisors (9707811919).

125450251121 is a wasteful number, since it uses less digits than its factorization.

125450251121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128055.

The product of its (nonzero) digits is 4000, while the sum is 29.

The spelling of 125450251121 in words is "one hundred twenty-five billion, four hundred fifty million, two hundred fifty-one thousand, one hundred twenty-one".