23123120311 has 8 divisors (see below), whose sum is σ = 24131378304. Its totient is φ = 22115104440.

The previous prime is 23123120309. The next prime is 23123120359. The reversal of 23123120311 is 11302132132.

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

It is not a de Polignac number, because 23123120311 - 2¹ = 23123120309 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 (23123120381) 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 7 ways as a sum of consecutive naturals, for example, 150300 + ... + 262366.

It is an arithmetic number, because the mean of its divisors is an integer number (3016422288).

Almost surely, 2^23123120311 is an apocalyptic number.

23123120311 is a deficient number, since it is larger than the sum of its proper divisors (1008257993).

23123120311 is a wasteful number, since it uses less digits than its factorization.

23123120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121061.

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

Adding to 23123120311 its reverse (11302132132), we get a palindrome (34425252443).

The spelling of 23123120311 in words is "twenty-three billion, one hundred twenty-three million, one hundred twenty thousand, three hundred eleven".