121301403 has 8 divisors (see below), whose sum is σ = 167312400. Its totient is φ = 78079008.

The previous prime is 121301387. The next prime is 121301449. The reversal of 121301403 is 304103121.

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

It is not a de Polignac number, because 121301403 - 2⁴ = 121301387 is a prime.

It is a super-3 number, since 3×121301403³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121301003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 697048 + ... + 697221.

It is an arithmetic number, because the mean of its divisors is an integer number (20914050).

Almost surely, 2^121301403 is an apocalyptic number.

121301403 is a deficient number, since it is larger than the sum of its proper divisors (46010997).

121301403 is a wasteful number, since it uses less digits than its factorization.

121301403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394301.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121301403 is about 11013.6916154394. The cubic root of 121301403 is about 495.0190830313.

Adding to 121301403 its reverse (304103121), we get a palindrome (425404524).

The spelling of 121301403 in words is "one hundred twenty-one million, three hundred one thousand, four hundred three".