20231220230331 has 32 divisors (see below), whose sum is σ = 29477372940288. Its totient is φ = 12240463556640.

The previous prime is 20231220230329. The next prime is 20231220230371. The reversal of 20231220230331 is 13303202213202.

It is not a de Polignac number, because 20231220230331 - 2¹ = 20231220230329 is a prime.

It is a super-2 number, since 2×20231220230331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20231220230311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73827490 + ... + 74101016.

It is an arithmetic number, because the mean of its divisors is an integer number (921167904384).

Almost surely, 2^{20231220230331} is an apocalyptic number.

20231220230331 is a deficient number, since it is larger than the sum of its proper divisors (9246152709957).

20231220230331 is a wasteful number, since it uses less digits than its factorization.

20231220230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277351.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20231220230331 its reverse (13303202213202), we get a palindrome (33534422443533).

The spelling of 20231220230331 in words is "twenty trillion, two hundred thirty-one billion, two hundred twenty million, two hundred thirty thousand, three hundred thirty-one".