23123212231123 has 2 divisors, whose sum is σ = 23123212231124. Its totient is φ = 23123212231122.

The previous prime is 23123212231061. The next prime is 23123212231291. The reversal of 23123212231123 is 32113221232132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23123212231123 - 2⁹ = 23123212230611 is a prime.

It is a super-2 number, since 2×23123212231123² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23123212231091 and 23123212231100.

It is not a weakly prime, because it can be changed into another prime (23123212237123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561606115561 + 11561606115562.

It is an arithmetic number, because the mean of its divisors is an integer number (11561606115562).

Almost surely, 2^{23123212231123} is an apocalyptic number.

23123212231123 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123212231123 is an equidigital number, since it uses as much as digits as its factorization.

23123212231123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

Adding to 23123212231123 its reverse (32113221232132), we get a palindrome (55236433463255).

The spelling of 23123212231123 in words is "twenty-three trillion, one hundred twenty-three billion, two hundred twelve million, two hundred thirty-one thousand, one hundred twenty-three".