1232001121 has 16 divisors (see below), whose sum is σ = 1348401600. Its totient is φ = 1118808000.

The previous prime is 1232001119. The next prime is 1232001139. The reversal of 1232001121 is 1211002321.

It is a cyclic number.

It is not a de Polignac number, because 1232001121 - 2¹ = 1232001119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1232001181) 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, 268555 + ... + 273103.

It is an arithmetic number, because the mean of its divisors is an integer number (84275100).

Almost surely, 2^1232001121 is an apocalyptic number.

It is an amenable number.

1232001121 is a deficient number, since it is larger than the sum of its proper divisors (116400479).

1232001121 is a wasteful number, since it uses less digits than its factorization.

1232001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1232001121 is about 35099.8735182906. The cubic root of 1232001121 is about 1072.0220073381.

Adding to 1232001121 its reverse (1211002321), we get a palindrome (2443003442).

The spelling of 1232001121 in words is "one billion, two hundred thirty-two million, one thousand, one hundred twenty-one".