23043211321 has 4 divisors (see below), whose sum is σ = 24815766052. Its totient is φ = 21270656592.

The previous prime is 23043211313. The next prime is 23043211337. The reversal of 23043211321 is 12311234032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15828407721 + 7214803600 = 125811^2 + 84940^2 .

It is a cyclic number.

It is not a de Polignac number, because 23043211321 - 2³ = 23043211313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23043211292 and 23043211301.

It is not an unprimeable number, because it can be changed into a prime (23043211421) 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, 886277346 + ... + 886277371.

It is an arithmetic number, because the mean of its divisors is an integer number (6203941513).

Almost surely, 2^23043211321 is an apocalyptic number.

It is an amenable number.

23043211321 is a deficient number, since it is larger than the sum of its proper divisors (1772554731).

23043211321 is a wasteful number, since it uses less digits than its factorization.

23043211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772554730.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 23043211321 its reverse (12311234032), we get a palindrome (35354445353).

The spelling of 23043211321 in words is "twenty-three billion, forty-three million, two hundred eleven thousand, three hundred twenty-one".