133113230123 has 4 divisors (see below), whose sum is σ = 133115754240. Its totient is φ = 133110706008.

The previous prime is 133113230099. The next prime is 133113230167. The reversal of 133113230123 is 321032311331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321032311331 = 1279 ⋅251002589.

It is a cyclic number.

It is not a de Polignac number, because 133113230123 - 2²² = 133109035819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133113238123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181228 + ... + 1289001.

It is an arithmetic number, because the mean of its divisors is an integer number (33278938560).

Almost surely, 2^133113230123 is an apocalyptic number.

133113230123 is a deficient number, since it is larger than the sum of its proper divisors (2524117).

133113230123 is an equidigital number, since it uses as much as digits as its factorization.

133113230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524116.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133113230123 its reverse (321032311331), we get a palindrome (454145541454).

The spelling of 133113230123 in words is "one hundred thirty-three billion, one hundred thirteen million, two hundred thirty thousand, one hundred twenty-three".