20321031022 has 8 divisors (see below), whose sum is σ = 32274578736. Its totient is φ = 9562838112.

The previous prime is 20321031019. The next prime is 20321031043. The reversal of 20321031022 is 22013012302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20321030987 and 20321031005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298838658 + ... + 298838725.

It is an arithmetic number, because the mean of its divisors is an integer number (4034322342).

Almost surely, 2^20321031022 is an apocalyptic number.

20321031022 is a deficient number, since it is larger than the sum of its proper divisors (11953547714).

20321031022 is a wasteful number, since it uses less digits than its factorization.

20321031022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597677402.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20321031022 its reverse (22013012302), we get a palindrome (42334043324).

The spelling of 20321031022 in words is "twenty billion, three hundred twenty-one million, thirty-one thousand, twenty-two".