21311411312 has 20 divisors (see below), whose sum is σ = 41293142040. Its totient is φ = 10655116608.

The previous prime is 21311411309. The next prime is 21311411371.

21311411312 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21311411312² (a number of 21 digits) contains 22 as substring.

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, 490739 + ... + 532397.

It is an arithmetic number, because the mean of its divisors is an integer number (2064657102).

Almost surely, 2^21311411312 is an apocalyptic number.

It is an amenable number.

21311411312 is a deficient number, since it is larger than the sum of its proper divisors (19981730728).

21311411312 is a wasteful number, since it uses less digits than its factorization.

21311411312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73640 (or 73634 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The spelling of 21311411312 in words is "twenty-one billion, three hundred eleven million, four hundred eleven thousand, three hundred twelve".