21410330431 has 12 divisors (see below), whose sum is σ = 24962140872. Its totient is φ = 18310267248.

The previous prime is 21410330419. The next prime is 21410330441. The reversal of 21410330431 is 13403301412.

It is not a de Polignac number, because 21410330431 - 2⁷ = 21410330303 is a prime.

It is a super-3 number, since 3×21410330431³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410330441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471460 + ... + 514873.

It is an arithmetic number, because the mean of its divisors is an integer number (2080178406).

Almost surely, 2^21410330431 is an apocalyptic number.

21410330431 is a deficient number, since it is larger than the sum of its proper divisors (3551810441).

21410330431 is an equidigital number, since it uses as much as digits as its factorization.

21410330431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986790 (or 986783 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21410330431 its reverse (13403301412), we get a palindrome (34813631843).

The spelling of 21410330431 in words is "twenty-one billion, four hundred ten million, three hundred thirty thousand, four hundred thirty-one".