121010230120 has 128 divisors (see below), whose sum is σ = 316992412800. Its totient is φ = 41184930816.

The previous prime is 121010230097. The next prime is 121010230147. The reversal of 121010230120 is 21032010121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 121010230120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200047 + ... + 531073.

It is an arithmetic number, because the mean of its divisors is an integer number (2476503225).

Almost surely, 2^121010230120 is an apocalyptic number.

121010230120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121010230120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158496206400).

121010230120 is an abundant number, since it is smaller than the sum of its proper divisors (195982182680).

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

121010230120 is a wasteful number, since it uses less digits than its factorization.

121010230120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331107 (or 331103 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121010230120 its reverse (21032010121), we get a palindrome (142042240241).

The spelling of 121010230120 in words is "one hundred twenty-one billion, ten million, two hundred thirty thousand, one hundred twenty".