23412112021 has 4 divisors (see below), whose sum is σ = 23910242112. Its totient is φ = 22913981932.

The previous prime is 23412112019. The next prime is 23412112027. The reversal of 23412112021 is 12021121432.

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 23412112021 - 2¹ = 23412112019 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 23412112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23412112027) 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, 249064975 + ... + 249065068.

It is an arithmetic number, because the mean of its divisors is an integer number (5977560528).

Almost surely, 2^23412112021 is an apocalyptic number.

It is an amenable number.

23412112021 is a deficient number, since it is larger than the sum of its proper divisors (498130091).

23412112021 is an equidigital number, since it uses as much as digits as its factorization.

23412112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498130090.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 23412112021 its reverse (12021121432), we get a palindrome (35433233453).

The spelling of 23412112021 in words is "twenty-three billion, four hundred twelve million, one hundred twelve thousand, twenty-one".