12121432104403 has 2 divisors, whose sum is σ = 12121432104404. Its totient is φ = 12121432104402.

The previous prime is 12121432104377. The next prime is 12121432104461. The reversal of 12121432104403 is 30440123412121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12121432104403 - 2¹⁷ = 12121431973331 is a prime.

It is not a weakly prime, because it can be changed into another prime (12121432104203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060716052201 + 6060716052202.

It is an arithmetic number, because the mean of its divisors is an integer number (6060716052202).

Almost surely, 2^{12121432104403} is an apocalyptic number.

12121432104403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121432104403 is an equidigital number, since it uses as much as digits as its factorization.

12121432104403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 12121432104403 its reverse (30440123412121), we get a palindrome (42561555516524).

The spelling of 12121432104403 in words is "twelve trillion, one hundred twenty-one billion, four hundred thirty-two million, one hundred four thousand, four hundred three".