121334120403 has 16 divisors (see below), whose sum is σ = 170425718400. Its totient is φ = 76572578880.

The previous prime is 121334120357. The next prime is 121334120449. The reversal of 121334120403 is 304021433121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121334120357) and next prime (121334120449).

It is not a de Polignac number, because 121334120403 - 2¹⁶ = 121334054867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121334120603) 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 15 ways as a sum of consecutive naturals, for example, 752233 + ... + 899178.

It is an arithmetic number, because the mean of its divisors is an integer number (10651607400).

Almost surely, 2^121334120403 is an apocalyptic number.

121334120403 is a deficient number, since it is larger than the sum of its proper divisors (49091597997).

121334120403 is a wasteful number, since it uses less digits than its factorization.

121334120403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652722.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121334120403 its reverse (304021433121), we get a palindrome (425355553524).

The spelling of 121334120403 in words is "one hundred twenty-one billion, three hundred thirty-four million, one hundred twenty thousand, four hundred three".