21410133231 has 8 divisors (see below), whose sum is σ = 28841142064. Its totient is φ = 14126273280.

The previous prime is 21410133193. The next prime is 21410133247. The reversal of 21410133231 is 13233101412.

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

It is not a de Polignac number, because 21410133231 - 2³⁴ = 4230264047 is a prime.

It is a super-2 number, since 2×21410133231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21410133198 and 21410133207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410133271) 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, 36786880 + ... + 36787461.

It is an arithmetic number, because the mean of its divisors is an integer number (3605142758).

Almost surely, 2^21410133231 is an apocalyptic number.

21410133231 is a deficient number, since it is larger than the sum of its proper divisors (7431008833).

21410133231 is an equidigital number, since it uses as much as digits as its factorization.

21410133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73574441.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21410133231 its reverse (13233101412), we get a palindrome (34643234643).

The spelling of 21410133231 in words is "twenty-one billion, four hundred ten million, one hundred thirty-three thousand, two hundred thirty-one".