20231223132 has 24 divisors (see below), whose sum is σ = 48210575616. Its totient is φ = 6600257008.

The previous prime is 20231223127. The next prime is 20231223163. The reversal of 20231223132 is 23132213202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20231223099 and 20231223108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17934918 + ... + 17936045.

It is an arithmetic number, because the mean of its divisors is an integer number (2008773984).

Almost surely, 2^20231223132 is an apocalyptic number.

It is an amenable number.

20231223132 is an abundant number, since it is smaller than the sum of its proper divisors (27979352484).

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

20231223132 is a wasteful number, since it uses less digits than its factorization.

20231223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35871017 (or 35871015 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20231223132 its reverse (23132213202), we get a palindrome (43363436334).

The spelling of 20231223132 in words is "twenty billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred thirty-two".