21433075411 has 4 divisors (see below), whose sum is σ = 23381536824. Its totient is φ = 19484614000.

The previous prime is 21433075403. The next prime is 21433075421. The reversal of 21433075411 is 11457033412.

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 21433075411 - 2³ = 21433075403 is a prime.

It is a super-2 number, since 2×21433075411² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21433075421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974230690 + ... + 974230711.

It is an arithmetic number, because the mean of its divisors is an integer number (5845384206).

Almost surely, 2^21433075411 is an apocalyptic number.

21433075411 is a deficient number, since it is larger than the sum of its proper divisors (1948461413).

21433075411 is a wasteful number, since it uses less digits than its factorization.

21433075411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948461412.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 21433075411 in words is "twenty-one billion, four hundred thirty-three million, seventy-five thousand, four hundred eleven".