23123011311 has 12 divisors (see below), whose sum is σ = 33457798192. Its totient is φ = 15388621056.

The previous prime is 23123011297. The next prime is 23123011313. The reversal of 23123011311 is 11311032132.

23123011311 is a `hidden beast` number, since 2 + 312 + 30 + 11 + 311 = 666.

It is not a de Polignac number, because 23123011311 - 2¹³ = 23123003119 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 (23123011313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2221171 + ... + 2231556.

Almost surely, 2^23123011311 is an apocalyptic number.

23123011311 is a deficient number, since it is larger than the sum of its proper divisors (10334786881).

23123011311 is a wasteful number, since it uses less digits than its factorization.

23123011311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453310 (or 4453307 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 23123011311 its reverse (11311032132), we get a palindrome (34434043443).

The spelling of 23123011311 in words is "twenty-three billion, one hundred twenty-three million, eleven thousand, three hundred eleven".