33130023 has 4 divisors (see below), whose sum is σ = 44173368. Its totient is φ = 22086680.

The previous prime is 33130003. The next prime is 33130039. The reversal of 33130023 is 32003133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32003133 = 3 ⋅10667711.

It is a cyclic number.

It is not a de Polignac number, because 33130023 - 2²⁰ = 32081447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33129984 and 33130011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5521668 + ... + 5521673.

It is an arithmetic number, because the mean of its divisors is an integer number (11043342).

Almost surely, 2^33130023 is an apocalyptic number.

33130023 is a deficient number, since it is larger than the sum of its proper divisors (11043345).

33130023 is a wasteful number, since it uses less digits than its factorization.

33130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11043344.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 33130023 is about 5755.8685704244. The cubic root of 33130023 is about 321.1741468273.

Adding to 33130023 its reverse (32003133), we get a palindrome (65133156).

The spelling of 33130023 in words is "thirty-three million, one hundred thirty thousand, twenty-three".