533531021101 has 4 divisors (see below), whose sum is σ = 574571868892. Its totient is φ = 492490173312.

The previous prime is 533531021081. The next prime is 533531021141. The reversal of 533531021101 is 101120135335.

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

It can be written as a sum of positive squares in 2 ways, for example, as 123463687876 + 410067333225 = 351374^2 + 640365^2 .

It is a cyclic number.

It is not a de Polignac number, because 533531021101 - 2⁷ = 533531020973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533531021141) 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 3 ways as a sum of consecutive naturals, for example, 20520423876 + ... + 20520423901.

It is an arithmetic number, because the mean of its divisors is an integer number (143642967223).

Almost surely, 2^533531021101 is an apocalyptic number.

It is an amenable number.

533531021101 is a deficient number, since it is larger than the sum of its proper divisors (41040847791).

533531021101 is a wasteful number, since it uses less digits than its factorization.

533531021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41040847790.

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 533531021101 its reverse (101120135335), we get a palindrome (634651156436).

The spelling of 533531021101 in words is "five hundred thirty-three billion, five hundred thirty-one million, twenty-one thousand, one hundred one".