23121412311 has 4 divisors (see below), whose sum is σ = 30828549752. Its totient is φ = 15414274872.

The previous prime is 23121412271. The next prime is 23121412319. The reversal of 23121412311 is 11321412132.

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

It is not a de Polignac number, because 23121412311 - 2²⁷ = 22987194583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121412319) 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, 3853568716 + ... + 3853568721.

It is an arithmetic number, because the mean of its divisors is an integer number (7707137438).

Almost surely, 2^23121412311 is an apocalyptic number.

23121412311 is a deficient number, since it is larger than the sum of its proper divisors (7707137441).

23121412311 is an equidigital number, since it uses as much as digits as its factorization.

23121412311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7707137440.

The product of its digits is 288, while the sum is 21.

Adding to 23121412311 its reverse (11321412132), we get a palindrome (34442824443).

The spelling of 23121412311 in words is "twenty-three billion, one hundred twenty-one million, four hundred twelve thousand, three hundred eleven".