1232544121 has 4 divisors (see below), whose sum is σ = 1258768512. Its totient is φ = 1206319732.

The previous prime is 1232544067. The next prime is 1232544133. The reversal of 1232544121 is 1214452321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1232544121 - 2²⁷ = 1098326393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232544151) 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, 13112125 + ... + 13112218.

It is an arithmetic number, because the mean of its divisors is an integer number (314692128).

Almost surely, 2^1232544121 is an apocalyptic number.

It is an amenable number.

1232544121 is a deficient number, since it is larger than the sum of its proper divisors (26224391).

1232544121 is an equidigital number, since it uses as much as digits as its factorization.

1232544121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26224390.

The product of its digits is 1920, while the sum is 25.

The square root of 1232544121 is about 35107.6077367855. The cubic root of 1232544121 is about 1072.1794808015.

Adding to 1232544121 its reverse (1214452321), we get a palindrome (2446996442).

The spelling of 1232544121 in words is "one billion, two hundred thirty-two million, five hundred forty-four thousand, one hundred twenty-one".