123233123311 has 4 divisors (see below), whose sum is σ = 123265277712. Its totient is φ = 123200968912.

The previous prime is 123233123281. The next prime is 123233123323. The reversal of 123233123311 is 113321332321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113321332321 = 29 ⋅3907632149.

It is a cyclic number.

It is not a de Polignac number, because 123233123311 - 2⁷ = 123233123183 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 (123233123341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16071451 + ... + 16079116.

It is an arithmetic number, because the mean of its divisors is an integer number (30816319428).

Almost surely, 2^123233123311 is an apocalyptic number.

123233123311 is a deficient number, since it is larger than the sum of its proper divisors (32154401).

123233123311 is an equidigital number, since it uses as much as digits as its factorization.

123233123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32154400.

The product of its digits is 1944, while the sum is 25.

Adding to 123233123311 its reverse (113321332321), we get a palindrome (236554455632).

The spelling of 123233123311 in words is "one hundred twenty-three billion, two hundred thirty-three million, one hundred twenty-three thousand, three hundred eleven".