233123321133 has 28 divisors (see below), whose sum is σ = 364721858400. Its totient is φ = 148658339016.

The previous prime is 233123321113. The next prime is 233123321153. The reversal of 233123321133 is 331123321332.

233123321133 is a `hidden beast` number, since 2 + 3 + 312 + 332 + 1 + 13 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (233123321113) and next prime (233123321153).

It is a de Polignac number, because none of the positive numbers 2^k-233123321133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 233123321097 and 233123321106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233123321113) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 6935083 + ... + 6968616.

Almost surely, 2^233123321133 is an apocalyptic number.

233123321133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

233123321133 is a deficient number, since it is larger than the sum of its proper divisors (131598537267).

233123321133 is an equidigital number, since it uses as much as digits as its factorization.

233123321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13903740 (or 13903725 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 233123321133 its reverse (331123321332), we get a palindrome (564246642465).

The spelling of 233123321133 in words is "two hundred thirty-three billion, one hundred twenty-three million, three hundred twenty-one thousand, one hundred thirty-three".