23321133213121 has 8 divisors (see below), whose sum is σ = 24137791039080. Its totient is φ = 22505307441792.

The previous prime is 23321133213061. The next prime is 23321133213137. The reversal of 23321133213121 is 12131233112332.

It can be written as a sum of positive squares in 4 ways, for example, as 12760355642896 + 10560777570225 = 3572164^2 + 3249735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23321133213121 - 2¹⁵ = 23321133180353 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 23321133213121.

It is not an unprimeable number, because it can be changed into a prime (23321133213151) 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, 207956620 + ... + 208068733.

It is an arithmetic number, because the mean of its divisors is an integer number (3017223879885).

Almost surely, 2^{23321133213121} is an apocalyptic number.

It is an amenable number.

23321133213121 is a deficient number, since it is larger than the sum of its proper divisors (816657825959).

23321133213121 is a wasteful number, since it uses less digits than its factorization.

23321133213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416027315.

The product of its digits is 3888, while the sum is 28.

Adding to 23321133213121 its reverse (12131233112332), we get a palindrome (35452366325453).

The spelling of 23321133213121 in words is "twenty-three trillion, three hundred twenty-one billion, one hundred thirty-three million, two hundred thirteen thousand, one hundred twenty-one".