213111113303 has 16 divisors (see below), whose sum is σ = 240486046080. Its totient is φ = 187145056800.

The previous prime is 213111113269. The next prime is 213111113381. The reversal of 213111113303 is 303311111312.

It is a cyclic number.

It is not a de Polignac number, because 213111113303 - 2¹² = 213111109207 is a prime.

It is a super-2 number, since 2×213111113303² (a number of 23 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 (213111116303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1826933 + ... + 1940078.

It is an arithmetic number, because the mean of its divisors is an integer number (15030377880).

Almost surely, 2^213111113303 is an apocalyptic number.

213111113303 is a deficient number, since it is larger than the sum of its proper divisors (27374932777).

213111113303 is a wasteful number, since it uses less digits than its factorization.

213111113303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767198.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 213111113303 its reverse (303311111312), we get a palindrome (516422224615).

The spelling of 213111113303 in words is "two hundred thirteen billion, one hundred eleven million, one hundred thirteen thousand, three hundred three".