33023131 has 4 divisors (see below), whose sum is σ = 33046000. Its totient is φ = 33000264.

The previous prime is 33023119. The next prime is 33023171. The reversal of 33023131 is 13132033.

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

It is a cyclic number.

It is not a de Polignac number, because 33023131 - 2⁵ = 33023099 is a prime.

It is a super-2 number, since 2×33023131² = 2181054362086322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33023171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9111 + ... + 12208.

It is an arithmetic number, because the mean of its divisors is an integer number (8261500).

Almost surely, 2^33023131 is an apocalyptic number.

33023131 is a deficient number, since it is larger than the sum of its proper divisors (22869).

33023131 is a wasteful number, since it uses less digits than its factorization.

33023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22868.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 33023131 is about 5746.5755889921. The cubic root of 33023131 is about 320.8283584019.

Adding to 33023131 its reverse (13132033), we get a palindrome (46155164).

The spelling of 33023131 in words is "thirty-three million, twenty-three thousand, one hundred thirty-one".