23113021321 has 8 divisors (see below), whose sum is σ = 24964811144. Its totient is φ = 21271783680.

The previous prime is 23113021297. The next prime is 23113021357. The reversal of 23113021321 is 12312031132.

It can be written as a sum of positive squares in 4 ways, for example, as 435974400 + 22677046921 = 20880^2 + 150589^2 .

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 23113021321 - 2²³ = 23104632713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23113021391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2633490 + ... + 2642251.

It is an arithmetic number, because the mean of its divisors is an integer number (3120601393).

Almost surely, 2^23113021321 is an apocalyptic number.

It is an amenable number.

23113021321 is a deficient number, since it is larger than the sum of its proper divisors (1851789823).

23113021321 is a wasteful number, since it uses less digits than its factorization.

23113021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276091.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23113021321 its reverse (12312031132), we get a palindrome (35425052453).

The spelling of 23113021321 in words is "twenty-three billion, one hundred thirteen million, twenty-one thousand, three hundred twenty-one".