21412110040431 has 12 divisors (see below), whose sum is σ = 31380833448216. Its totient is φ = 12977036387920.

The previous prime is 21412110040403. The next prime is 21412110040471. The reversal of 21412110040431 is 13404001121412.

It is a happy number.

It is not a de Polignac number, because 21412110040431 - 2⁷ = 21412110040303 is a prime.

It is a super-2 number, since 2×21412110040431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412110040471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29493264156 + ... + 29493264881.

It is an arithmetic number, because the mean of its divisors is an integer number (2615069454018).

Almost surely, 2^{21412110040431} is an apocalyptic number.

21412110040431 is a deficient number, since it is larger than the sum of its proper divisors (9968723407785).

21412110040431 is a wasteful number, since it uses less digits than its factorization.

21412110040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58986529062 (or 58986529051 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 21412110040431 its reverse (13404001121412), we get a palindrome (34816111161843).

The spelling of 21412110040431 in words is "twenty-one trillion, four hundred twelve billion, one hundred ten million, forty thousand, four hundred thirty-one".