211113021331 has 8 divisors (see below), whose sum is σ = 222234840000. Its totient is φ = 199992263400.

The previous prime is 211113021307. The next prime is 211113021341. The reversal of 211113021331 is 133120311112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211113021331 - 2¹⁷ = 211112890259 is a prime.

It is a super-2 number, since 2×211113021331² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211113021299 and 211113021308.

It is not an unprimeable number, because it can be changed into a prime (211113021341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160920 + ... + 669418.

It is an arithmetic number, because the mean of its divisors is an integer number (27779355000).

Almost surely, 2^211113021331 is an apocalyptic number.

211113021331 is a deficient number, since it is larger than the sum of its proper divisors (11121818669).

211113021331 is a wasteful number, since it uses less digits than its factorization.

211113021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530369.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 211113021331 its reverse (133120311112), we get a palindrome (344233332443).

The spelling of 211113021331 in words is "two hundred eleven billion, one hundred thirteen million, twenty-one thousand, three hundred thirty-one".