121120030 has 16 divisors (see below), whose sum is σ = 218141424. Its totient is φ = 48420160.

The previous prime is 121120009. The next prime is 121120057. The reversal of 121120030 is 30021121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 121119989 and 121120016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31914 + ... + 35506.

It is an arithmetic number, because the mean of its divisors is an integer number (13633839).

Almost surely, 2^121120030 is an apocalyptic number.

121120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120030 is a deficient number, since it is larger than the sum of its proper divisors (97021394).

121120030 is a wasteful number, since it uses less digits than its factorization.

121120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6971.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 121120030 is about 11005.4545567187. The cubic root of 121120030 is about 494.7722381754.

Adding to 121120030 its reverse (30021121), we get a palindrome (151141151).

The spelling of 121120030 in words is "one hundred twenty-one million, one hundred twenty thousand, thirty".