21410131 has 8 divisors (see below), whose sum is σ = 22771280. Its totient is φ = 20072448.

The previous prime is 21410117. The next prime is 21410141. The reversal of 21410131 is 13101412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21410131 - 2⁷ = 21410003 is a prime.

It is a super-2 number, since 2×21410131² = 916787418874322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21410111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3966 + ... + 7651.

It is an arithmetic number, because the mean of its divisors is an integer number (2846410).

Almost surely, 2^21410131 is an apocalyptic number.

21410131 is a deficient number, since it is larger than the sum of its proper divisors (1361149).

21410131 is a wasteful number, since it uses less digits than its factorization.

21410131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11733.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 21410131 is about 4627.1082762347. The cubic root of 21410131 is about 277.6769144854.

Adding to 21410131 its reverse (13101412), we get a palindrome (34511543).

The spelling of 21410131 in words is "twenty-one million, four hundred ten thousand, one hundred thirty-one".