12121303430 has 8 divisors (see below), whose sum is σ = 21818346192. Its totient is φ = 4848521368.

The previous prime is 12121303357. The next prime is 12121303553. The reversal of 12121303430 is 3430312121.

12121303430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 606065162 + ... + 606065181.

It is an arithmetic number, because the mean of its divisors is an integer number (2727293274).

Almost surely, 2^12121303430 is an apocalyptic number.

12121303430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121303430 is a deficient number, since it is larger than the sum of its proper divisors (9697042762).

12121303430 is a wasteful number, since it uses less digits than its factorization.

12121303430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212130350.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12121303430 its reverse (3430312121), we get a palindrome (15551615551).

The spelling of 12121303430 in words is "twelve billion, one hundred twenty-one million, three hundred three thousand, four hundred thirty".