2331122243 has 4 divisors (see below), whose sum is σ = 2432475408. Its totient is φ = 2229769080.

The previous prime is 2331122239. The next prime is 2331122251. The reversal of 2331122243 is 3422211332.

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 2331122243 - 2² = 2331122239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 101353141 = 2331122243 / (2 + 3 + 3 + 1 + 1 + 2 + 2 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2331122203) 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, 50676548 + ... + 50676593.

It is an arithmetic number, because the mean of its divisors is an integer number (608118852).

Almost surely, 2^2331122243 is an apocalyptic number.

2331122243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2331122243 is a deficient number, since it is larger than the sum of its proper divisors (101353165).

2331122243 is a wasteful number, since it uses less digits than its factorization.

2331122243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101353164.

The product of its digits is 1728, while the sum is 23.

The square root of 2331122243 is about 48281.6967701012. The cubic root of 2331122243 is about 1325.9333152305.

Adding to 2331122243 its reverse (3422211332), we get a palindrome (5753333575).

It can be divided in two parts, 23311 and 22243, that added together give a palindrome (45554).

The spelling of 2331122243 in words is "two billion, three hundred thirty-one million, one hundred twenty-two thousand, two hundred forty-three".