33120423 has 24 divisors (see below), whose sum is σ = 55796000. Its totient is φ = 18924192.

The previous prime is 33120421. The next prime is 33120467. The reversal of 33120423 is 32402133.

It is not a de Polignac number, because 33120423 - 2¹ = 33120421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33120396 and 33120405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33120421) 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, 2278 + ... + 8451.

Almost surely, 2^33120423 is an apocalyptic number.

33120423 is a deficient number, since it is larger than the sum of its proper divisors (22675577).

33120423 is a wasteful number, since it uses less digits than its factorization.

33120423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10756 (or 10739 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 33120423 is about 5755.0345785234. The cubic root of 33120423 is about 321.1431219000.

Adding to 33120423 its reverse (32402133), we get a palindrome (65522556).

The spelling of 33120423 in words is "thirty-three million, one hundred twenty thousand, four hundred twenty-three".