2113231323 has 16 divisors (see below), whose sum is σ = 3229295616. Its totient is φ = 1204135680.

The previous prime is 2113231301. The next prime is 2113231333. The reversal of 2113231323 is 3231323112.

It is not a de Polignac number, because 2113231323 - 2¹⁷ = 2113100251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2113231323.

It is not an unprimeable number, because it can be changed into a prime (2113231333) 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, 135123 + ... + 149948.

It is an arithmetic number, because the mean of its divisors is an integer number (201830976).

Almost surely, 2^2113231323 is an apocalyptic number.

2113231323 is a deficient number, since it is larger than the sum of its proper divisors (1116064293).

2113231323 is a wasteful number, since it uses less digits than its factorization.

2113231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285434.

The product of its digits is 648, while the sum is 21.

The square root of 2113231323 is about 45969.8958341217. The cubic root of 2113231323 is about 1283.2630213610.

Adding to 2113231323 its reverse (3231323112), we get a palindrome (5344554435).

The spelling of 2113231323 in words is "two billion, one hundred thirteen million, two hundred thirty-one thousand, three hundred twenty-three".