121032018 has 24 divisors (see below), whose sum is σ = 262591056. Its totient is φ = 40289400.

The previous prime is 121032017. The next prime is 121032047. The reversal of 121032018 is 810230121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121032017) 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, 10453 + ... + 18743.

It is an arithmetic number, because the mean of its divisors is an integer number (10941294).

Almost surely, 2^121032018 is an apocalyptic number.

121032018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

121032018 is an abundant number, since it is smaller than the sum of its proper divisors (141559038).

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

121032018 is a wasteful number, since it uses less digits than its factorization.

121032018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110 (or 9107 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 121032018 is about 11001.4552673726. The cubic root of 121032018 is about 494.6523668763.

Adding to 121032018 its reverse (810230121), we get a palindrome (931262139).

The spelling of 121032018 in words is "one hundred twenty-one million, thirty-two thousand, eighteen".