12121434032403 has 8 divisors (see below), whose sum is σ = 16163777703168. Its totient is φ = 8080023191624.

The previous prime is 12121434032339. The next prime is 12121434032417. The reversal of 12121434032403 is 30423043412121.

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

It is a cyclic number.

It is not a de Polignac number, because 12121434032403 - 2⁶ = 12121434032339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121434033403) 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 7 ways as a sum of consecutive naturals, for example, 233177175 + ... + 233229152.

It is an arithmetic number, because the mean of its divisors is an integer number (2020472212896).

Almost surely, 2^{12121434032403} is an apocalyptic number.

12121434032403 is a deficient number, since it is larger than the sum of its proper divisors (4042343670765).

12121434032403 is an equidigital number, since it uses as much as digits as its factorization.

12121434032403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466414993.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 12121434032403 its reverse (30423043412121), we get a palindrome (42544477444524).

The spelling of 12121434032403 in words is "twelve trillion, one hundred twenty-one billion, four hundred thirty-four million, thirty-two thousand, four hundred three".