20131333120 has 88 divisors (see below), whose sum is σ = 48344310144. Its totient is φ = 8043749376.

The previous prime is 20131333109. The next prime is 20131333127. The reversal of 20131333120 is 2133313102.

It is not an unprimeable number, because it can be changed into a prime (20131333127) 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, 6792759 + ... + 6795721.

Almost surely, 2^20131333120 is an apocalyptic number.

20131333120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20131333120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24172155072).

20131333120 is an abundant number, since it is smaller than the sum of its proper divisors (28212977024).

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

20131333120 is a wasteful number, since it uses less digits than its factorization.

20131333120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315 (or 4297 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20131333120 its reverse (2133313102), we get a palindrome (22264646222).

The spelling of 20131333120 in words is "twenty billion, one hundred thirty-one million, three hundred thirty-three thousand, one hundred twenty".