13233121 has 16 divisors (see below), whose sum is σ = 14971968. Its totient is φ = 11592000.

The previous prime is 13233109. The next prime is 13233127. The reversal of 13233121 is 12133231.

It is a cyclic number.

It is not a de Polignac number, because 13233121 - 2¹⁵ = 13200353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13233095 and 13233104.

It is not an unprimeable number, because it can be changed into a prime (13233127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47635 + ... + 47911.

It is an arithmetic number, because the mean of its divisors is an integer number (935748).

Almost surely, 2^13233121 is an apocalyptic number.

13233121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13233121 is a deficient number, since it is larger than the sum of its proper divisors (1738847).

13233121 is a wasteful number, since it uses less digits than its factorization.

13233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its digits is 108, while the sum is 16.

The square root of 13233121 is about 3637.7356968312. The cubic root of 13233121 is about 236.5306514184.

Adding to 13233121 its reverse (12133231), we get a palindrome (25366352).

It can be divided in two parts, 1323 and 3121, that added together give a palindrome (4444).

The spelling of 13233121 in words is "thirteen million, two hundred thirty-three thousand, one hundred twenty-one".