23389129311 has 4 divisors (see below), whose sum is σ = 31185505752. Its totient is φ = 15592752872.

The previous prime is 23389129307. The next prime is 23389129327. The reversal of 23389129311 is 11392198332.

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

It is a cyclic number.

It is not a de Polignac number, because 23389129311 - 2² = 23389129307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23389129301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3898188216 + ... + 3898188221.

It is an arithmetic number, because the mean of its divisors is an integer number (7796376438).

Almost surely, 2^23389129311 is an apocalyptic number.

23389129311 is a deficient number, since it is larger than the sum of its proper divisors (7796376441).

23389129311 is an equidigital number, since it uses as much as digits as its factorization.

23389129311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7796376440.

The product of its digits is 69984, while the sum is 42.

The spelling of 23389129311 in words is "twenty-three billion, three hundred eighty-nine million, one hundred twenty-nine thousand, three hundred eleven".