121800014 has 8 divisors (see below), whose sum is σ = 208800048. Its totient is φ = 52200000.

The previous prime is 121799999. The next prime is 121800017. The reversal of 121800014 is 410008121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121799965 and 121800001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121800017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4349987 + ... + 4350014.

It is an arithmetic number, because the mean of its divisors is an integer number (26100006).

Almost surely, 2^121800014 is an apocalyptic number.

121800014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121800014 is a deficient number, since it is larger than the sum of its proper divisors (87000034).

121800014 is an equidigital number, since it uses as much as digits as its factorization.

121800014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8700010.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 121800014 is about 11036.3043633274. The cubic root of 121800014 is about 495.6964166147.

Adding to 121800014 its reverse (410008121), we get a palindrome (531808135).

The spelling of 121800014 in words is "one hundred twenty-one million, eight hundred thousand, fourteen".