121042418 has 8 divisors (see below), whose sum is σ = 207501312. Its totient is φ = 51875316.

The previous prime is 121042417. The next prime is 121042501. The reversal of 121042418 is 814240121.

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 = 121042393 and 121042402.

It is not an unprimeable number, because it can be changed into a prime (121042417) 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, 4322930 + ... + 4322957.

It is an arithmetic number, because the mean of its divisors is an integer number (25937664).

Almost surely, 2^121042418 is an apocalyptic number.

121042418 is a deficient number, since it is larger than the sum of its proper divisors (86458894).

121042418 is an equidigital number, since it uses as much as digits as its factorization.

121042418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645896.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 121042418 is about 11001.9279219599. The cubic root of 121042418 is about 494.6665345799. Note that the first 3 decimals are identical.

Adding to 121042418 its reverse (814240121), we get a palindrome (935282539).

The spelling of 121042418 in words is "one hundred twenty-one million, forty-two thousand, four hundred eighteen".