8121913230 has 64 divisors (see below), whose sum is σ = 19639895040. Its totient is φ = 2149540224.

The previous prime is 8121913201. The next prime is 8121913277. The reversal of 8121913230 is 323191218.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 2382187 + ... + 2385593.

It is an arithmetic number, because the mean of its divisors is an integer number (306873360).

Almost surely, 2^8121913230 is an apocalyptic number.

8121913230 is an abundant number, since it is smaller than the sum of its proper divisors (11517981810).

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

8121913230 is a wasteful number, since it uses less digits than its factorization.

8121913230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 8121913230 is about 90121.6579408080. The cubic root of 8121913230 is about 2010.1082612909.

It can be divided in two parts, 81219 and 13230, that added together give a palindrome (94449).

The spelling of 8121913230 in words is "eight billion, one hundred twenty-one million, nine hundred thirteen thousand, two hundred thirty".