21412043310 has 64 divisors (see below), whose sum is σ = 58748442624. Its totient is φ = 4892659200.

The previous prime is 21412043291. The next prime is 21412043333. The reversal of 21412043310 is 1334021412.

It is a super-2 number, since 2×21412043310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 748470 + ... + 776550.

It is an arithmetic number, because the mean of its divisors is an integer number (917944416).

Almost surely, 2^21412043310 is an apocalyptic number.

21412043310 is an abundant number, since it is smaller than the sum of its proper divisors (37336399314).

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

21412043310 is a wasteful number, since it uses less digits than its factorization.

21412043310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31729.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21412043310 its reverse (1334021412), we get a palindrome (22746064722).

The spelling of 21412043310 in words is "twenty-one billion, four hundred twelve million, forty-three thousand, three hundred ten".