121803768 has 48 divisors (see below), whose sum is σ = 344232720. Its totient is φ = 38835456.

The previous prime is 121803767. The next prime is 121803797. The reversal of 121803768 is 867308121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121803767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35121 + ... + 38432.

It is an arithmetic number, because the mean of its divisors is an integer number (7171515).

Almost surely, 2^121803768 is an apocalyptic number.

121803768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121803768 is an abundant number, since it is smaller than the sum of its proper divisors (222428952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121803768 is a wasteful number, since it uses less digits than its factorization.

121803768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73588 (or 73581 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 121803768 is about 11036.4744370655. The cubic root of 121803768 is about 495.7015091845.

The spelling of 121803768 in words is "one hundred twenty-one million, eight hundred three thousand, seven hundred sixty-eight".