1232451324121 has 4 divisors (see below), whose sum is σ = 1304948460852. Its totient is φ = 1159954187392.

The previous prime is 1232451324119. The next prime is 1232451324127. The reversal of 1232451324121 is 1214231542321.

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 1073700078025 + 158751246096 = 1036195^2 + 398436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232451324121 - 2¹ = 1232451324119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232451324127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36248568340 + ... + 36248568373.

It is an arithmetic number, because the mean of its divisors is an integer number (326237115213).

Almost surely, 2^{1232451324121} is an apocalyptic number.

It is an amenable number.

1232451324121 is a deficient number, since it is larger than the sum of its proper divisors (72497136731).

1232451324121 is an equidigital number, since it uses as much as digits as its factorization.

1232451324121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72497136730.

The product of its digits is 11520, while the sum is 31.

Adding to 1232451324121 its reverse (1214231542321), we get a palindrome (2446682866442).

The spelling of 1232451324121 in words is "one trillion, two hundred thirty-two billion, four hundred fifty-one million, three hundred twenty-four thousand, one hundred twenty-one".