21430041031411 has 4 divisors (see below), whose sum is σ = 21431236721992. Its totient is φ = 21428845340832.

The previous prime is 21430041031339. The next prime is 21430041031423. The reversal of 21430041031411 is 11413014003412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21430041031411 - 2¹⁷ = 21430040900339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21430041031471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597818406 + ... + 597854251.

It is an arithmetic number, because the mean of its divisors is an integer number (5357809180498).

Almost surely, 2^{21430041031411} is an apocalyptic number.

21430041031411 is a deficient number, since it is larger than the sum of its proper divisors (1195690581).

21430041031411 is a wasteful number, since it uses less digits than its factorization.

21430041031411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195690580.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 21430041031411 its reverse (11413014003412), we get a palindrome (32843055034823).

The spelling of 21430041031411 in words is "twenty-one trillion, four hundred thirty billion, forty-one million, thirty-one thousand, four hundred eleven".