213023020233 has 16 divisors (see below), whose sum is σ = 302764236800. Its totient is φ = 132837803280.

The previous prime is 213023020159. The next prime is 213023020313. The reversal of 213023020233 is 332020320312.

It is a de Polignac number, because none of the positive numbers 2^k-213023020233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213023020033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23648953 + ... + 23657958.

It is an arithmetic number, because the mean of its divisors is an integer number (18922764800).

Almost surely, 2^213023020233 is an apocalyptic number.

It is an amenable number.

213023020233 is a deficient number, since it is larger than the sum of its proper divisors (89741216567).

213023020233 is a wasteful number, since it uses less digits than its factorization.

213023020233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47307012.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 213023020233 its reverse (332020320312), we get a palindrome (545043340545).

The spelling of 213023020233 in words is "two hundred thirteen billion, twenty-three million, twenty thousand, two hundred thirty-three".