2331213013 has 4 divisors (see below), whose sum is σ = 2331627628. Its totient is φ = 2330798400.

The previous prime is 2331212987. The next prime is 2331213029. The reversal of 2331213013 is 3103121332.

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 1860887044 + 470325969 = 43138^2 + 21687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331213013 is a prime.

It is a super-2 number, since 2×2331213013² = 10869108223961076338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311213013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198756 + ... + 210157.

It is an arithmetic number, because the mean of its divisors is an integer number (582906907).

Almost surely, 2^2331213013 is an apocalyptic number.

It is an amenable number.

2331213013 is a deficient number, since it is larger than the sum of its proper divisors (414615).

2331213013 is an equidigital number, since it uses as much as digits as its factorization.

2331213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414614.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2331213013 is about 48282.6367651975. The cubic root of 2331213013 is about 1325.9505248821.

Adding to 2331213013 its reverse (3103121332), we get a palindrome (5434334345).

The spelling of 2331213013 in words is "two billion, three hundred thirty-one million, two hundred thirteen thousand, thirteen".