23012311123 has 8 divisors (see below), whose sum is σ = 23295228768. Its totient is φ = 22730784384.

The previous prime is 23012311117. The next prime is 23012311199. The reversal of 23012311123 is 32111321032.

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

It is a cyclic number.

It is not a de Polignac number, because 23012311123 - 2⁹ = 23012310611 is a prime.

It is a super-2 number, since 2×23012311123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23012311123.

It is not an unprimeable number, because it can be changed into a prime (23012311423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314415 + ... + 380632.

It is an arithmetic number, because the mean of its divisors is an integer number (2911903596).

Almost surely, 2^23012311123 is an apocalyptic number.

23012311123 is a deficient number, since it is larger than the sum of its proper divisors (282917645).

23012311123 is a wasteful number, since it uses less digits than its factorization.

23012311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695453.

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

Adding to 23012311123 its reverse (32111321032), we get a palindrome (55123632155).

Subtracting 23012311123 from its reverse (32111321032), we obtain a palindrome (9099009909).

The spelling of 23012311123 in words is "twenty-three billion, twelve million, three hundred eleven thousand, one hundred twenty-three".