20323221032 has 16 divisors (see below), whose sum is σ = 38126477760. Its totient is φ = 10156160304.

The previous prime is 20323221031. The next prime is 20323221041. The reversal of 20323221032 is 23012232302.

It is a junction number, because it is equal to n+sod(n) for n = 20323220995 and 20323221013.

It is not an unprimeable number, because it can be changed into a prime (20323221031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665408 + ... + 695279.

It is an arithmetic number, because the mean of its divisors is an integer number (2382904860).

Almost surely, 2^20323221032 is an apocalyptic number.

It is an amenable number.

20323221032 is a deficient number, since it is larger than the sum of its proper divisors (17803256728).

20323221032 is a wasteful number, since it uses less digits than its factorization.

20323221032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362560 (or 1362556 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20323221032 its reverse (23012232302), we get a palindrome (43335453334).

The spelling of 20323221032 in words is "twenty billion, three hundred twenty-three million, two hundred twenty-one thousand, thirty-two".