213013013111311 has 4 divisors (see below), whose sum is σ = 243443443555792. Its totient is φ = 182582582666832.

The previous prime is 213013013111273. The next prime is 213013013111357. The reversal of 213013013111311 is 113111310310312.

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 213013013111311 - 2³³ = 213004423176719 is a prime.

It is a super-2 number, since 2×213013013111311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213013013112311) 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, 15215215222230 + ... + 15215215222243.

It is an arithmetic number, because the mean of its divisors is an integer number (60860860888948).

Almost surely, 2^{213013013111311} is an apocalyptic number.

213013013111311 is a deficient number, since it is larger than the sum of its proper divisors (30430430444481).

213013013111311 is an equidigital number, since it uses as much as digits as its factorization.

213013013111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30430430444480.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 213013013111311 its reverse (113111310310312), we get a palindrome (326124323421623).

The spelling of 213013013111311 in words is "two hundred thirteen trillion, thirteen billion, thirteen million, one hundred eleven thousand, three hundred eleven".