20231112103021 has 4 divisors (see below), whose sum is σ = 20427530667232. Its totient is φ = 20034693538812.

The previous prime is 20231112103019. The next prime is 20231112103073. The reversal of 20231112103021 is 12030121113202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20231112103021 - 2¹ = 20231112103019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20231112103021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231112100021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98209281951 + ... + 98209282156.

It is an arithmetic number, because the mean of its divisors is an integer number (5106882666808).

Almost surely, 2^{20231112103021} is an apocalyptic number.

It is an amenable number.

20231112103021 is a deficient number, since it is larger than the sum of its proper divisors (196418564211).

20231112103021 is a wasteful number, since it uses less digits than its factorization.

20231112103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196418564210.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20231112103021 its reverse (12030121113202), we get a palindrome (32261233216223).

The spelling of 20231112103021 in words is "twenty trillion, two hundred thirty-one billion, one hundred twelve million, one hundred three thousand, twenty-one".