2311213230 has 32 divisors (see below), whose sum is σ = 6163236000. Its totient is φ = 616323456.

The previous prime is 2311213207. The next prime is 2311213231. The reversal of 2311213230 is 323121132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311213231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4279755 + ... + 4280294.

It is an arithmetic number, because the mean of its divisors is an integer number (192601125).

Almost surely, 2^2311213230 is an apocalyptic number.

2311213230 is an abundant number, since it is smaller than the sum of its proper divisors (3852022770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311213230 is a wasteful number, since it uses less digits than its factorization.

2311213230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560065 (or 8560059 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2311213230 is about 48075.0790950987. The cubic root of 2311213230 is about 1322.1477947131.

Adding to 2311213230 its reverse (323121132), we get a palindrome (2634334362).

The spelling of 2311213230 in words is "two billion, three hundred eleven million, two hundred thirteen thousand, two hundred thirty".