20232131222 has 32 divisors (see below), whose sum is σ = 32402488320. Its totient is φ = 9441607680.

The previous prime is 20232131207. The next prime is 20232131237. The reversal of 20232131222 is 22213123202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20232131207) and next prime (20232131237).

It is a junction number, because it is equal to n+sod(n) for n = 20232131194 and 20232131203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1995947 + ... + 2006057.

It is an arithmetic number, because the mean of its divisors is an integer number (1012577760).

Almost surely, 2^20232131222 is an apocalyptic number.

20232131222 is a deficient number, since it is larger than the sum of its proper divisors (12170357098).

20232131222 is a wasteful number, since it uses less digits than its factorization.

20232131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10616.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20232131222 its reverse (22213123202), we get a palindrome (42445254424).

The spelling of 20232131222 in words is "twenty billion, two hundred thirty-two million, one hundred thirty-one thousand, two hundred twenty-two".