121703418 has 32 divisors (see below), whose sum is σ = 274893120. Its totient is φ = 39901680.

The previous prime is 121703411. The next prime is 121703429. The reversal of 121703418 is 814307121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121703391 and 121703400.

It is not an unprimeable number, because it can be changed into a prime (121703411) 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, 15180 + ... + 21767.

It is an arithmetic number, because the mean of its divisors is an integer number (8590410).

Almost surely, 2^121703418 is an apocalyptic number.

121703418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

121703418 is an abundant number, since it is smaller than the sum of its proper divisors (153189702).

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

121703418 is a wasteful number, since it uses less digits than its factorization.

121703418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37019 (or 37013 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 121703418 is about 11031.9272115075. The cubic root of 121703418 is about 495.5653412202.

The spelling of 121703418 in words is "one hundred twenty-one million, seven hundred three thousand, four hundred eighteen".