3231012112021 has 2 divisors, whose sum is σ = 3231012112022. Its totient is φ = 3231012112020.

The previous prime is 3231012112019. The next prime is 3231012112033. The reversal of 3231012112021 is 1202112101323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1952416549521 + 1278595562500 = 1397289^2 + 1130750^2 .

It is a cyclic number.

It is not a de Polignac number, because 3231012112021 - 2¹ = 3231012112019 is a prime.

Together with 3231012112019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3231012112021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3231012115021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615506056010 + 1615506056011.

It is an arithmetic number, because the mean of its divisors is an integer number (1615506056011).

Almost surely, 2^{3231012112021} is an apocalyptic number.

It is an amenable number.

3231012112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231012112021 is an equidigital number, since it uses as much as digits as its factorization.

3231012112021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 3231012112021 its reverse (1202112101323), we get a palindrome (4433124213344).

The spelling of 3231012112021 in words is "three trillion, two hundred thirty-one billion, twelve million, one hundred twelve thousand, twenty-one".