121144403 has 8 divisors (see below), whose sum is σ = 122081472. Its totient is φ = 120211456.

The previous prime is 121144343. The next prime is 121144417. The reversal of 121144403 is 304441121.

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 121144403 - 2¹⁸ = 120882259 is a prime.

It is a super-3 number, since 3×121144403³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121144433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80726 + ... + 82212.

It is an arithmetic number, because the mean of its divisors is an integer number (15260184).

Almost surely, 2^121144403 is an apocalyptic number.

121144403 is a deficient number, since it is larger than the sum of its proper divisors (937069).

121144403 is a wasteful number, since it uses less digits than its factorization.

121144403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 121144403 is about 11006.5618155717. The cubic root of 121144403 is about 494.8054236443.

Adding to 121144403 its reverse (304441121), we get a palindrome (425585524).

The spelling of 121144403 in words is "one hundred twenty-one million, one hundred forty-four thousand, four hundred three".