23111406311 has 16 divisors (see below), whose sum is σ = 27498525504. Its totient is φ = 19010329344.

The previous prime is 23111406301. The next prime is 23111406349. The reversal of 23111406311 is 11360411132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23111406311 - 2¹⁴ = 23111389927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111406301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592280 + ... + 630093.

It is an arithmetic number, because the mean of its divisors is an integer number (1718657844).

Almost surely, 2^23111406311 is an apocalyptic number.

23111406311 is a deficient number, since it is larger than the sum of its proper divisors (4387119193).

23111406311 is a wasteful number, since it uses less digits than its factorization.

23111406311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222490.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 23111406311 its reverse (11360411132), we get a palindrome (34471817443).

The spelling of 23111406311 in words is "twenty-three billion, one hundred eleven million, four hundred six thousand, three hundred eleven".