20130124123120 has 80 divisors (see below), whose sum is σ = 51065310548448. Its totient is φ = 7318898795520.

The previous prime is 20130124123099. The next prime is 20130124123127. The reversal of 20130124123120 is 2132142103102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20130124123091 and 20130124123100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130124123127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3841402 + ... + 7417318.

Almost surely, 2^{20130124123120} is an apocalyptic number.

20130124123120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130124123120 is an abundant number, since it is smaller than the sum of its proper divisors (30935186425328).

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

20130124123120 is a wasteful number, since it uses less digits than its factorization.

20130124123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582338 (or 3582332 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20130124123120 its reverse (2132142103102), we get a palindrome (22262266226222).

The spelling of 20130124123120 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-four million, one hundred twenty-three thousand, one hundred twenty".