125011421444 has 96 divisors (see below), whose sum is σ = 271368867840. Its totient is φ = 49067845632.

The previous prime is 125011421413. The next prime is 125011421461. The reversal of 125011421444 is 444124110521.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55832477 + ... + 55834715.

It is an arithmetic number, because the mean of its divisors is an integer number (2826759040).

Almost surely, 2^125011421444 is an apocalyptic number.

125011421444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125011421444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135684433920).

125011421444 is an abundant number, since it is smaller than the sum of its proper divisors (146357446396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125011421444 is a wasteful number, since it uses less digits than its factorization.

125011421444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3395 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 125011421444 its reverse (444124110521), we get a palindrome (569135531965).

The spelling of 125011421444 in words is "one hundred twenty-five billion, eleven million, four hundred twenty-one thousand, four hundred forty-four".