20133132012 has 96 divisors (see below), whose sum is σ = 59697881600. Its totient is φ = 5748065856.

The previous prime is 20133131987. The next prime is 20133132029. The reversal of 20133132012 is 21023133102.

20133132012 is a `hidden beast` number, since 2 + 0 + 1 + 331 + 320 + 12 = 666.

It is a super-2 number, since 2×20133132012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1093878 + ... + 1112130.

Almost surely, 2^20133132012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20133132012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29848940800).

20133132012 is an abundant number, since it is smaller than the sum of its proper divisors (39564749588).

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

20133132012 is a wasteful number, since it uses less digits than its factorization.

20133132012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732 (or 19724 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20133132012 its reverse (21023133102), we get a palindrome (41156265114).

The spelling of 20133132012 in words is "twenty billion, one hundred thirty-three million, one hundred thirty-two thousand, twelve".