33213131233 has 4 divisors (see below), whose sum is σ = 33259976980. Its totient is φ = 33166285488.

The previous prime is 33213131197. The next prime is 33213131239.

33213131233 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7671657744 + 25541473489 = 87588^2 + 159817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33213131233 is a prime.

It is a super-2 number, since 2×33213131233² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33213131198 and 33213131207.

It is not an unprimeable number, because it can be changed into a prime (33213131239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23421810 + ... + 23423227.

It is an arithmetic number, because the mean of its divisors is an integer number (8314994245).

Almost surely, 2^33213131233 is an apocalyptic number.

It is an amenable number.

33213131233 is a deficient number, since it is larger than the sum of its proper divisors (46845747).

33213131233 is an equidigital number, since it uses as much as digits as its factorization.

33213131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46845746.

The product of its digits is 2916, while the sum is 25.

The spelling of 33213131233 in words is "thirty-three billion, two hundred thirteen million, one hundred thirty-one thousand, two hundred thirty-three".