121603363 has 16 divisors (see below), whose sum is σ = 154897920. Its totient is φ = 92935296.

The previous prime is 121603337. The next prime is 121603381. The reversal of 121603363 is 363306121.

It is a cyclic number.

It is not a de Polignac number, because 121603363 - 2⁵ = 121603331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121603303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24631 + ... + 29152.

It is an arithmetic number, because the mean of its divisors is an integer number (9681120).

Almost surely, 2^121603363 is an apocalyptic number.

121603363 is a deficient number, since it is larger than the sum of its proper divisors (33294557).

121603363 is a wasteful number, since it uses less digits than its factorization.

121603363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53826.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 121603363 is about 11027.3914866572. The cubic root of 121603363 is about 495.4294990086.

Adding to 121603363 its reverse (363306121), we get a palindrome (484909484).

The spelling of 121603363 in words is "one hundred twenty-one million, six hundred three thousand, three hundred sixty-three".