20321303332 has 48 divisors (see below), whose sum is σ = 39672218880. Its totient is φ = 9028659200.

The previous prime is 20321303293. The next prime is 20321303333. The reversal of 20321303332 is 23330312302.

It is a super-2 number, since 2×20321303332² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20321303333) 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, 1691844 + ... + 1703812.

It is an arithmetic number, because the mean of its divisors is an integer number (826504560).

Almost surely, 2^20321303332 is an apocalyptic number.

20321303332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20321303332 is a deficient number, since it is larger than the sum of its proper divisors (19350915548).

20321303332 is a wasteful number, since it uses less digits than its factorization.

20321303332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12852 (or 12850 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20321303332 its reverse (23330312302), we get a palindrome (43651615634).

The spelling of 20321303332 in words is "twenty billion, three hundred twenty-one million, three hundred three thousand, three hundred thirty-two".