23120321011 has 8 divisors (see below), whose sum is σ = 24489352944. Its totient is φ = 21752290560.

The previous prime is 23120320999. The next prime is 23120321047. The reversal of 23120321011 is 11012302132.

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 23120321011 - 2³³ = 14530386419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120324011) 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, 202570 + ... + 295423.

It is an arithmetic number, because the mean of its divisors is an integer number (3061169118).

Almost surely, 2^23120321011 is an apocalyptic number.

23120321011 is a deficient number, since it is larger than the sum of its proper divisors (1369031933).

23120321011 is a wasteful number, since it uses less digits than its factorization.

23120321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500741.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23120321011 its reverse (11012302132), we get a palindrome (34132623143).

The spelling of 23120321011 in words is "twenty-three billion, one hundred twenty million, three hundred twenty-one thousand, eleven".