21231433413212 has 96 divisors (see below), whose sum is σ = 43358646401280. Its totient is φ = 8989568640000.

The previous prime is 21231433413191. The next prime is 21231433413221.

21231433413212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 200829287 + ... + 200934977.

It is an arithmetic number, because the mean of its divisors is an integer number (451652566680).

Almost surely, 2^{21231433413212} is an apocalyptic number.

21231433413212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21231433413212 is an abundant number, since it is smaller than the sum of its proper divisors (22127212988068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21231433413212 is a wasteful number, since it uses less digits than its factorization.

21231433413212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108483 (or 108481 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

It can be divided in two parts, 2123143 and 3413212, that added together give a palindrome (5536355).

The spelling of 21231433413212 in words is "twenty-one trillion, two hundred thirty-one billion, four hundred thirty-three million, four hundred thirteen thousand, two hundred twelve".