23421221313 has 8 divisors (see below), whose sum is σ = 35689480128. Its totient is φ = 13383555024.

The previous prime is 23421221311. The next prime is 23421221393. The reversal of 23421221313 is 31312212432.

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

It is not a de Polignac number, because 23421221313 - 2¹ = 23421221311 is a prime.

It is a super-3 number, since 3×23421221313³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23421221311) 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, 557648106 + ... + 557648147.

It is an arithmetic number, because the mean of its divisors is an integer number (4461185016).

Almost surely, 2^23421221313 is an apocalyptic number.

It is an amenable number.

23421221313 is a deficient number, since it is larger than the sum of its proper divisors (12268258815).

23421221313 is a wasteful number, since it uses less digits than its factorization.

23421221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115296263.

The product of its digits is 1728, while the sum is 24.

Adding to 23421221313 its reverse (31312212432), we get a palindrome (54733433745).

The spelling of 23421221313 in words is "twenty-three billion, four hundred twenty-one million, two hundred twenty-one thousand, three hundred thirteen".