1233133223123 has 4 divisors (see below), whose sum is σ = 1305670471560. Its totient is φ = 1160595974688.

The previous prime is 1233133223107. The next prime is 1233133223129. The reversal of 1233133223123 is 3213223313321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1233133223123 - 2⁴ = 1233133223107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233133223129) 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, 36268624193 + ... + 36268624226.

It is an arithmetic number, because the mean of its divisors is an integer number (326417617890).

Almost surely, 2^{1233133223123} is an apocalyptic number.

1233133223123 is a deficient number, since it is larger than the sum of its proper divisors (72537248437).

1233133223123 is an equidigital number, since it uses as much as digits as its factorization.

1233133223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72537248436.

The product of its digits is 11664, while the sum is 29.

Adding to 1233133223123 its reverse (3213223313321), we get a palindrome (4446356536444).

The spelling of 1233133223123 in words is "one trillion, two hundred thirty-three billion, one hundred thirty-three million, two hundred twenty-three thousand, one hundred twenty-three".