213302123311 has 4 divisors (see below), whose sum is σ = 215414025624. Its totient is φ = 211190221000.

The previous prime is 213302123269. The next prime is 213302123323. The reversal of 213302123311 is 113321203312.

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

It is a cyclic number.

It is not a de Polignac number, because 213302123311 - 2⁹ = 213302122799 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213302123351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055951005 + ... + 1055951206.

It is an arithmetic number, because the mean of its divisors is an integer number (53853506406).

Almost surely, 2^213302123311 is an apocalyptic number.

213302123311 is a deficient number, since it is larger than the sum of its proper divisors (2111902313).

213302123311 is a wasteful number, since it uses less digits than its factorization.

213302123311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111902312.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213302123311 its reverse (113321203312), we get a palindrome (326623326623).

The spelling of 213302123311 in words is "two hundred thirteen billion, three hundred two million, one hundred twenty-three thousand, three hundred eleven".