20333133132 has 48 divisors (see below), whose sum is σ = 51125555712. Its totient is φ = 6252425280.

The previous prime is 20333133131. The next prime is 20333133173. The reversal of 20333133132 is 23133133302.

It is a super-2 number, since 2×20333133132² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20333133131) 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, 213757 + ... + 293867.

It is an arithmetic number, because the mean of its divisors is an integer number (1065115744).

Almost surely, 2^20333133132 is an apocalyptic number.

It is an amenable number.

20333133132 is an abundant number, since it is smaller than the sum of its proper divisors (30792422580).

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

20333133132 is a wasteful number, since it uses less digits than its factorization.

20333133132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81758 (or 81756 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 20333133132 its reverse (23133133302), we get a palindrome (43466266434).

The spelling of 20333133132 in words is "twenty billion, three hundred thirty-three million, one hundred thirty-three thousand, one hundred thirty-two".