125021343400 has 144 divisors (see below), whose sum is σ = 297610014240. Its totient is φ = 48840105600.

The previous prime is 125021343389. The next prime is 125021343437. The reversal of 125021343400 is 4343120521.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 117611269 + ... + 117612331.

It is an arithmetic number, because the mean of its divisors is an integer number (2066736210).

Almost surely, 2^125021343400 is an apocalyptic number.

125021343400 is a gapful number since it is divisible by the number (10) 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 125021343400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148805007120).

125021343400 is an abundant number, since it is smaller than the sum of its proper divisors (172588670840).

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

125021343400 is a wasteful number, since it uses less digits than its factorization.

125021343400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 125021343400 its reverse (4343120521), we get a palindrome (129364463921).

The spelling of 125021343400 in words is "one hundred twenty-five billion, twenty-one million, three hundred forty-three thousand, four hundred".