21413533531412 has 24 divisors (see below), whose sum is σ = 41255431583520. Its totient is φ = 9644126859360.

The previous prime is 21413533531373. The next prime is 21413533531421.

It is a happy number.

21413533531412 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2232431978 + ... + 2232441569.

It is an arithmetic number, because the mean of its divisors is an integer number (1718976315980).

Almost surely, 2^{21413533531412} is an apocalyptic number.

21413533531412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21413533531412 is a deficient number, since it is larger than the sum of its proper divisors (19841898052108).

21413533531412 is a wasteful number, since it uses less digits than its factorization.

21413533531412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464873671 (or 4464873669 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

It can be divided in two parts, 2141353 and 3531412, that added together give a palindrome (5672765).

The spelling of 21413533531412 in words is "twenty-one trillion, four hundred thirteen billion, five hundred thirty-three million, five hundred thirty-one thousand, four hundred twelve".