20132332020 has 72 divisors (see below), whose sum is σ = 61672763880. Its totient is φ = 5315462400.

The previous prime is 20132331977. The next prime is 20132332057. The reversal of 20132332020 is 2023323102.

It is a happy number.

20132332020 is a `hidden beast` number, since 2 + 0 + 1 + 323 + 320 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5936086116 + 14196245904 = 77046^2 + 119148^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20132331984 and 20132332002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 535515 + ... + 571874.

It is an arithmetic number, because the mean of its divisors is an integer number (856566165).

Almost surely, 2^20132332020 is an apocalyptic number.

20132332020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132332020 is an abundant number, since it is smaller than the sum of its proper divisors (41540431860).

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

20132332020 is a wasteful number, since it uses less digits than its factorization.

20132332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107505 (or 1107500 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20132332020 its reverse (2023323102), we get a palindrome (22155655122).

The spelling of 20132332020 in words is "twenty billion, one hundred thirty-two million, three hundred thirty-two thousand, twenty".