213333111023 has 2 divisors, whose sum is σ = 213333111024. Its totient is φ = 213333111022.

The previous prime is 213333111011. The next prime is 213333111097. The reversal of 213333111023 is 320111333312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213333111023 - 2⁴ = 213333111007 is a prime.

It is a super-2 number, since 2×213333111023² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213333111023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213333161023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106666555511 + 106666555512.

It is an arithmetic number, because the mean of its divisors is an integer number (106666555512).

Almost surely, 2^213333111023 is an apocalyptic number.

213333111023 is a deficient number, since it is larger than the sum of its proper divisors (1).

213333111023 is an equidigital number, since it uses as much as digits as its factorization.

213333111023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 213333111023 its reverse (320111333312), we get a palindrome (533444444335).

The spelling of 213333111023 in words is "two hundred thirteen billion, three hundred thirty-three million, one hundred eleven thousand, twenty-three".