21433011123434 has 8 divisors (see below), whose sum is σ = 34040664725508. Its totient is φ = 10086122881600.

The previous prime is 21433011123371. The next prime is 21433011123443. The reversal of 21433011123434 is 43432111033412.

It can be written as a sum of positive squares in 2 ways, for example, as 19246620087409 + 2186391036025 = 4387097^2 + 1478645^2 .

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

It is a super-3 number, since 3×21433011123434³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21433011123434.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 315191340017 + ... + 315191340084.

Almost surely, 2^{21433011123434} is an apocalyptic number.

21433011123434 is a deficient number, since it is larger than the sum of its proper divisors (12607653602074).

21433011123434 is a wasteful number, since it uses less digits than its factorization.

21433011123434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630382680120.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 21433011123434 its reverse (43432111033412), we get a palindrome (64865122156846).

The spelling of 21433011123434 in words is "twenty-one trillion, four hundred thirty-three billion, eleven million, one hundred twenty-three thousand, four hundred thirty-four".