20300322132 has 72 divisors (see below), whose sum is σ = 56206823400. Its totient is φ = 6149111808.

The previous prime is 20300322101. The next prime is 20300322139. The reversal of 20300322132 is 23122300302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7746464196 + 12553857936 = 88014^2 + 112044^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300322139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 554157 + ... + 589652.

It is an arithmetic number, because the mean of its divisors is an integer number (780650325).

Almost surely, 2^20300322132 is an apocalyptic number.

It is an amenable number.

20300322132 is an abundant number, since it is smaller than the sum of its proper divisors (35906501268).

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

20300322132 is a wasteful number, since it uses less digits than its factorization.

20300322132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143865 (or 1143860 counting only the distinct ones).

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

Adding to 20300322132 its reverse (23122300302), we get a palindrome (43422622434).

The spelling of 20300322132 in words is "twenty billion, three hundred million, three hundred twenty-two thousand, one hundred thirty-two".