23130320212 has 24 divisors (see below), whose sum is σ = 40547224872. Its totient is φ = 11545420800.

The previous prime is 23130320209. The next prime is 23130320233. The reversal of 23130320212 is 21202303132.

It can be written as a sum of positive squares in 4 ways, for example, as 5557106116 + 17573214096 = 74546^2 + 132564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23130320212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10413262 + ... + 10415482.

It is an arithmetic number, because the mean of its divisors is an integer number (1689467703).

Almost surely, 2^23130320212 is an apocalyptic number.

It is an amenable number.

23130320212 is a deficient number, since it is larger than the sum of its proper divisors (17416904660).

23130320212 is a wasteful number, since it uses less digits than its factorization.

23130320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499 (or 5497 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23130320212 its reverse (21202303132), we get a palindrome (44332623344).

The spelling of 23130320212 in words is "twenty-three billion, one hundred thirty million, three hundred twenty thousand, two hundred twelve".