20321122032 has 30 divisors (see below), whose sum is σ = 56870918312. Its totient is φ = 6773707296.

The previous prime is 20321122027. The next prime is 20321122037. The reversal of 20321122032 is 23022112302.

20321122032 is a `hidden beast` number, since 203 + 211 + 220 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (20321122027) and next prime (20321122037).

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 = 20321121996 and 20321122014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321122037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70559308 + ... + 70559595.

Almost surely, 2^20321122032 is an apocalyptic number.

It is an amenable number.

20321122032 is an abundant number, since it is smaller than the sum of its proper divisors (36549796280).

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

20321122032 is a wasteful number, since it uses less digits than its factorization.

20321122032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141118917 (or 141118908 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20321122032 its reverse (23022112302), we get a palindrome (43343234334).

The spelling of 20321122032 in words is "twenty billion, three hundred twenty-one million, one hundred twenty-two thousand, thirty-two".