1232010121 has 4 divisors (see below), whose sum is σ = 1232737812. Its totient is φ = 1231282432.

The previous prime is 1232010119. The next prime is 1232010133. The reversal of 1232010121 is 1210102321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1185838096 + 46172025 = 34436^2 + 6795^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232010121 - 2¹ = 1232010119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232010151) 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, 361300 + ... + 364693.

It is an arithmetic number, because the mean of its divisors is an integer number (308184453).

Almost surely, 2^1232010121 is an apocalyptic number.

It is an amenable number.

1232010121 is a deficient number, since it is larger than the sum of its proper divisors (727691).

1232010121 is an equidigital number, since it uses as much as digits as its factorization.

1232010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727690.

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

The square root of 1232010121 is about 35100.0017236467. The cubic root of 1232010121 is about 1072.0246177725.

Adding to 1232010121 its reverse (1210102321), we get a palindrome (2442112442).

The spelling of 1232010121 in words is "one billion, two hundred thirty-two million, ten thousand, one hundred twenty-one".