21410131013434 has 16 divisors (see below), whose sum is σ = 32163958667880. Its totient is φ = 10688814259200.

The previous prime is 21410131013423. The next prime is 21410131013473. The reversal of 21410131013434 is 43431013101412.

It can be written as a sum of positive squares in 4 ways, for example, as 12589545830625 + 8820585182809 = 3548175^2 + 2969947^2 .

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, 14717602 + ... + 16106770.

Almost surely, 2^{21410131013434} is an apocalyptic number.

21410131013434 is a deficient number, since it is larger than the sum of its proper divisors (10753827654446).

21410131013434 is a wasteful number, since it uses less digits than its factorization.

21410131013434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400865.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 21410131013434 its reverse (43431013101412), we get a palindrome (64841144114846).

The spelling of 21410131013434 in words is "twenty-one trillion, four hundred ten billion, one hundred thirty-one million, thirteen thousand, four hundred thirty-four".