23133323331 has 8 divisors (see below), whose sum is σ = 34271590160. Its totient is φ = 15422215536.

The previous prime is 23133323329. The next prime is 23133323333. The reversal of 23133323331 is 13332333132.

23133323331 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 3 + 323 + 331 = 666.

It is an interprime number because it is at equal distance from previous prime (23133323329) and next prime (23133323333).

It is not a de Polignac number, because 23133323331 - 2¹ = 23133323329 is a prime.

It is a super-2 number, since 2×23133323331² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 856789753 = 23133323331 / (2 + 3 + 1 + 3 + 3 + 3 + 2 + 3 + 3 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23133323295 and 23133323304.

It is not an unprimeable number, because it can be changed into a prime (23133323333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428394850 + ... + 428394903.

It is an arithmetic number, because the mean of its divisors is an integer number (4283948770).

Almost surely, 2^23133323331 is an apocalyptic number.

23133323331 is a deficient number, since it is larger than the sum of its proper divisors (11138266829).

23133323331 is an equidigital number, since it uses as much as digits as its factorization.

23133323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856789762 (or 856789756 counting only the distinct ones).

The product of its digits is 8748, while the sum is 27.

Adding to 23133323331 its reverse (13332333132), we get a palindrome (36465656463).

The spelling of 23133323331 in words is "twenty-three billion, one hundred thirty-three million, three hundred twenty-three thousand, three hundred thirty-one".