21413231412 has 12 divisors (see below), whose sum is σ = 49964206656. Its totient is φ = 7137743800.

The previous prime is 21413231407. The next prime is 21413231447.

21413231412 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892217964 + ... + 892217987.

It is an arithmetic number, because the mean of its divisors is an integer number (4163683888).

Almost surely, 2^21413231412 is an apocalyptic number.

It is an amenable number.

21413231412 is an abundant number, since it is smaller than the sum of its proper divisors (28550975244).

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

21413231412 is a wasteful number, since it uses less digits than its factorization.

21413231412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784435958 (or 1784435956 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The spelling of 21413231412 in words is "twenty-one billion, four hundred thirteen million, two hundred thirty-one thousand, four hundred twelve".