121116403 has 8 divisors (see below), whose sum is σ = 122569200. Its totient is φ = 119669760.

The previous prime is 121116397. The next prime is 121116409. The reversal of 121116403 is 304611121.

It is an interprime number because it is at equal distance from previous prime (121116397) and next prime (121116409).

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 121116403 - 2⁵ = 121116371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121116409) 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, 46783 + ... + 49303.

It is an arithmetic number, because the mean of its divisors is an integer number (15321150).

Almost surely, 2^121116403 is an apocalyptic number.

121116403 is a deficient number, since it is larger than the sum of its proper divisors (1452797).

121116403 is a wasteful number, since it uses less digits than its factorization.

121116403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 121116403 is about 11005.2897735589. The cubic root of 121116403 is about 494.7672993919.

Adding to 121116403 its reverse (304611121), we get a palindrome (425727524).

The spelling of 121116403 in words is "one hundred twenty-one million, one hundred sixteen thousand, four hundred three".