20120252432124 has 24 divisors (see below), whose sum is σ = 50558583034960. Its totient is φ = 6190846902144.

The previous prime is 20120252432123. The next prime is 20120252432197. The reversal of 20120252432124 is 42123425202102.

It is a junction number, because it is equal to n+sod(n) for n = 20120252432091 and 20120252432100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120252432123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64487988409 + ... + 64487988720.

Almost surely, 2^{20120252432124} is an apocalyptic number.

It is an amenable number.

20120252432124 is an abundant number, since it is smaller than the sum of its proper divisors (30438330602836).

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

20120252432124 is a wasteful number, since it uses less digits than its factorization.

20120252432124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128975977149 (or 128975977147 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 20120252432124 its reverse (42123425202102), we get a palindrome (62243677634226).

The spelling of 20120252432124 in words is "twenty trillion, one hundred twenty billion, two hundred fifty-two million, four hundred thirty-two thousand, one hundred twenty-four".