213243020433 has 48 divisors (see below), whose sum is σ = 327579033600. Its totient is φ = 133390303200.

The previous prime is 213243020401. The next prime is 213243020447. The reversal of 213243020433 is 334020342312.

213243020433 is a `hidden beast` number, since 2 + 1 + 324 + 302 + 0 + 4 + 33 = 666.

It is not a de Polignac number, because 213243020433 - 2⁵ = 213243020401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213243020397 and 213243020406.

It is not an unprimeable number, because it can be changed into a prime (213243020033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2888248 + ... + 2961158.

It is an arithmetic number, because the mean of its divisors is an integer number (6824563200).

Almost surely, 2^213243020433 is an apocalyptic number.

213243020433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213243020433 is a deficient number, since it is larger than the sum of its proper divisors (114336013167).

213243020433 is a wasteful number, since it uses less digits than its factorization.

213243020433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73210 (or 73207 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 213243020433 its reverse (334020342312), we get a palindrome (547263362745).

The spelling of 213243020433 in words is "two hundred thirteen billion, two hundred forty-three million, twenty thousand, four hundred thirty-three".