1232231011021 has 8 divisors (see below), whose sum is σ = 1248671548800. Its totient is φ = 1215811540320.

The previous prime is 1232231011019. The next prime is 1232231011061. The reversal of 1232231011021 is 1201101322321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1232231011021 - 2¹ = 1232231011019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1232231011021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232231011061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5148991 + ... + 5382988.

It is an arithmetic number, because the mean of its divisors is an integer number (156083943600).

Almost surely, 2^{1232231011021} is an apocalyptic number.

It is an amenable number.

1232231011021 is a deficient number, since it is larger than the sum of its proper divisors (16440537779).

1232231011021 is a wasteful number, since it uses less digits than its factorization.

1232231011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10533539.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1232231011021 its reverse (1201101322321), we get a palindrome (2433332333342).

The spelling of 1232231011021 in words is "one trillion, two hundred thirty-two billion, two hundred thirty-one million, eleven thousand, twenty-one".