20321301132 has 72 divisors (see below), whose sum is σ = 56081206272. Its totient is φ = 6153170400.

The previous prime is 20321301127. The next prime is 20321301151. The reversal of 20321301132 is 23110312302.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506157 + ... + 544827.

Almost surely, 2^20321301132 is an apocalyptic number.

20321301132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20321301132 is an abundant number, since it is smaller than the sum of its proper divisors (35759905140).

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

20321301132 is a wasteful number, since it uses less digits than its factorization.

20321301132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40019 (or 40014 counting only the distinct ones).

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

Adding to 20321301132 its reverse (23110312302), we get a palindrome (43431613434).

The spelling of 20321301132 in words is "twenty billion, three hundred twenty-one million, three hundred one thousand, one hundred thirty-two".