125040427402 has 48 divisors (see below), whose sum is σ = 214770528000. Its totient is φ = 54510209600.

The previous prime is 125040427381. The next prime is 125040427409. The reversal of 125040427402 is 204724040521.

It is not an unprimeable number, because it can be changed into a prime (125040427409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478599 + ... + 692197.

It is an arithmetic number, because the mean of its divisors is an integer number (4474386000).

Almost surely, 2^125040427402 is an apocalyptic number.

125040427402 is a deficient number, since it is larger than the sum of its proper divisors (89730100598).

125040427402 is a wasteful number, since it uses less digits than its factorization.

125040427402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213723 (or 213712 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 31.

Adding to 125040427402 its reverse (204724040521), we get a palindrome (329764467923).

The spelling of 125040427402 in words is "one hundred twenty-five billion, forty million, four hundred twenty-seven thousand, four hundred two".