233133131 has 24 divisors (see below), whose sum is σ = 300905280. Its totient is φ = 178558800.

The previous prime is 233133127. The next prime is 233133137. The reversal of 233133131 is 131331332.

It is not a de Polignac number, because 233133131 - 2² = 233133127 is a prime.

It is a super-2 number, since 2×233133131² = 108702113539726322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233133137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28136 + ... + 35466.

It is an arithmetic number, because the mean of its divisors is an integer number (12537720).

Almost surely, 2^233133131 is an apocalyptic number.

233133131 is a deficient number, since it is larger than the sum of its proper divisors (67772149).

233133131 is a wasteful number, since it uses less digits than its factorization.

233133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415 (or 7408 counting only the distinct ones).

The product of its digits is 486, while the sum is 20.

The square root of 233133131 is about 15268.6977506269. The cubic root of 233133131 is about 615.4621251757.

Adding to 233133131 its reverse (131331332), we get a palindrome (364464463).

It can be divided in two parts, 2 and 33133131, that added together give a palindrome (33133133).

The spelling of 233133131 in words is "two hundred thirty-three million, one hundred thirty-three thousand, one hundred thirty-one".