125021343402 has 32 divisors (see below), whose sum is σ = 278287551360. Its totient is φ = 41604429600.

The previous prime is 125021343389. The next prime is 125021343437. The reversal of 125021343402 is 204343120521.

125021343402 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 213 + 43 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1893678 + ... + 1958585.

It is an arithmetic number, because the mean of its divisors is an integer number (8696485980).

Almost surely, 2^125021343402 is an apocalyptic number.

125021343402 is an abundant number, since it is smaller than the sum of its proper divisors (153266207958).

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

125021343402 is a wasteful number, since it uses less digits than its factorization.

125021343402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852875 (or 3852869 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 125021343402 its reverse (204343120521), we get a palindrome (329364463923).

The spelling of 125021343402 in words is "one hundred twenty-five billion, twenty-one million, three hundred forty-three thousand, four hundred two".