128907240124 has 24 divisors (see below), whose sum is σ = 244161394400. Its totient is φ = 59196671424.

The previous prime is 128907240103. The next prime is 128907240149. The reversal of 128907240124 is 421042709821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6218259 + ... + 6238954.

Almost surely, 2^128907240124 is an apocalyptic number.

It is an amenable number.

128907240124 is a deficient number, since it is larger than the sum of its proper divisors (115254154276).

128907240124 is a wasteful number, since it uses less digits than its factorization.

128907240124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457429 (or 12457427 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

Adding to 128907240124 its reverse (421042709821), we get a palindrome (549949949945).

The spelling of 128907240124 in words is "one hundred twenty-eight billion, nine hundred seven million, two hundred forty thousand, one hundred twenty-four".