20003231022 has 16 divisors (see below), whose sum is σ = 40007865600. Its totient is φ = 6667509752.

The previous prime is 20003231021. The next prime is 20003231057. The reversal of 20003231022 is 22013230002.

It is a junction number, because it is equal to n+sod(n) for n = 20003230992 and 20003231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003231021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261313 + ... + 329075.

It is an arithmetic number, because the mean of its divisors is an integer number (2500491600).

Almost surely, 2^20003231022 is an apocalyptic number.

20003231022 is an abundant number, since it is smaller than the sum of its proper divisors (20004634578).

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

20003231022 is a wasteful number, since it uses less digits than its factorization.

20003231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116967.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20003231022 its reverse (22013230002), we get a palindrome (42016461024).

The spelling of 20003231022 in words is "twenty billion, three million, two hundred thirty-one thousand, twenty-two".