2331442213 has 4 divisors (see below), whose sum is σ = 2331763308. Its totient is φ = 2331121120.

The previous prime is 2331442207. The next prime is 2331442249. The reversal of 2331442213 is 3122441332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 699443809 + 1631998404 = 26447^2 + 40398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331442213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331442273) 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, 149398 + ... + 164263.

It is an arithmetic number, because the mean of its divisors is an integer number (582940827).

Almost surely, 2^2331442213 is an apocalyptic number.

It is an amenable number.

2331442213 is a deficient number, since it is larger than the sum of its proper divisors (321095).

2331442213 is an equidigital number, since it uses as much as digits as its factorization.

2331442213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321094.

The product of its digits is 3456, while the sum is 25.

The square root of 2331442213 is about 48285.0102309195. The cubic root of 2331442213 is about 1325.9939783545.

Adding to 2331442213 its reverse (3122441332), we get a palindrome (5453883545).

The spelling of 2331442213 in words is "two billion, three hundred thirty-one million, four hundred forty-two thousand, two hundred thirteen".