1233113312123 has 16 divisors (see below), whose sum is σ = 1538721517056. Its totient is φ = 960034083840.

The previous prime is 1233113312107. The next prime is 1233113312129. The reversal of 1233113312123 is 3212133113321.

It is a cyclic number.

It is not a de Polignac number, because 1233113312123 - 2⁴ = 1233113312107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1233113312092 and 1233113312101.

It is not an unprimeable number, because it can be changed into a prime (1233113312129) 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, 6855911 + ... + 7033472.

It is an arithmetic number, because the mean of its divisors is an integer number (96170094816).

Almost surely, 2^{1233113312123} is an apocalyptic number.

1233113312123 is a deficient number, since it is larger than the sum of its proper divisors (305608204933).

1233113312123 is a wasteful number, since it uses less digits than its factorization.

1233113312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890554.

The product of its digits is 1944, while the sum is 26.

Adding to 1233113312123 its reverse (3212133113321), we get a palindrome (4445246425444).

The spelling of 1233113312123 in words is "one trillion, two hundred thirty-three billion, one hundred thirteen million, three hundred twelve thousand, one hundred twenty-three".