13233021 has 12 divisors (see below), whose sum is σ = 18744192. Its totient is φ = 8302528.

The previous prime is 13233007. The next prime is 13233061. The reversal of 13233021 is 12033231.

It is not a de Polignac number, because 13233021 - 2⁷ = 13232893 is a prime.

It is a super-2 number, since 2×13233021² = 350225689572882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6765 + ... + 8498.

It is an arithmetic number, because the mean of its divisors is an integer number (1562016).

Almost surely, 2^13233021 is an apocalyptic number.

It is an amenable number.

13233021 is a deficient number, since it is larger than the sum of its proper divisors (5511171).

13233021 is a wasteful number, since it uses less digits than its factorization.

13233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15300 (or 15283 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13233021 is about 3637.7219519914. The cubic root of 13233021 is about 236.5300556122.

Adding to 13233021 its reverse (12033231), we get a palindrome (25266252).

It can be divided in two parts, 132 and 33021, that added together give a triangular number (33153 = T₂₅₇).

The spelling of 13233021 in words is "thirteen million, two hundred thirty-three thousand, twenty-one".