231244032212021 has 8 divisors (see below), whose sum is σ = 237553738444800. Its totient is φ = 224937476901648.

The previous prime is 231244032211939. The next prime is 231244032212029. The reversal of 231244032212021 is 120212230442132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231244032212021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231244032212029) 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 7 ways as a sum of consecutive naturals, for example, 787581821 + ... + 787875378.

It is an arithmetic number, because the mean of its divisors is an integer number (29694217305600).

Almost surely, 2^{231244032212021} is an apocalyptic number.

It is an amenable number.

231244032212021 is a deficient number, since it is larger than the sum of its proper divisors (6309706232779).

231244032212021 is a wasteful number, since it uses less digits than its factorization.

231244032212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575461203.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 231244032212021 its reverse (120212230442132), we get a palindrome (351456262654153).

The spelling of 231244032212021 in words is "two hundred thirty-one trillion, two hundred forty-four billion, thirty-two million, two hundred twelve thousand, twenty-one".