20231231212230 has 16 divisors (see below), whose sum is σ = 48554954909424. Its totient is φ = 5394994989920.

The previous prime is 20231231212217. The next prime is 20231231212237. The reversal of 20231231212230 is 3221213213202.

It is a self number, because there is not a number n which added to its sum of digits gives 20231231212230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231231212237) 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, 337187186841 + ... + 337187186900.

It is an arithmetic number, because the mean of its divisors is an integer number (3034684681839).

Almost surely, 2^{20231231212230} is an apocalyptic number.

20231231212230 is an abundant number, since it is smaller than the sum of its proper divisors (28323723697194).

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

20231231212230 is a wasteful number, since it uses less digits than its factorization.

20231231212230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674374373751.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20231231212230 its reverse (3221213213202), we get a palindrome (23452444425432).

The spelling of 20231231212230 in words is "twenty trillion, two hundred thirty-one billion, two hundred thirty-one million, two hundred twelve thousand, two hundred thirty".