211131233313 has 128 divisors (see below), whose sum is σ = 389971083264. Its totient is φ = 98052249600.

The previous prime is 211131233311. The next prime is 211131233329. The reversal of 211131233313 is 313332131112.

It is not a de Polignac number, because 211131233313 - 2¹ = 211131233311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211131233311) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 24773493 + ... + 24782013.

It is an arithmetic number, because the mean of its divisors is an integer number (3046649088).

Almost surely, 2^211131233313 is an apocalyptic number.

It is an amenable number.

211131233313 is a deficient number, since it is larger than the sum of its proper divisors (178839849951).

211131233313 is a wasteful number, since it uses less digits than its factorization.

211131233313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8815.

The product of its digits is 972, while the sum is 24.

Adding to 211131233313 its reverse (313332131112), we get a palindrome (524463364425).

It can be divided in two parts, 211131 and 233313, that added together give a palindrome (444444).

The spelling of 211131233313 in words is "two hundred eleven billion, one hundred thirty-one million, two hundred thirty-three thousand, three hundred thirteen".