121030323220 has 48 divisors (see below), whose sum is σ = 259781760000. Its totient is φ = 47343688704.

The previous prime is 121030323187. The next prime is 121030323233. The reversal of 121030323220 is 22323030121.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1122517 + ... + 1225603.

It is an arithmetic number, because the mean of its divisors is an integer number (5412120000).

Almost surely, 2^121030323220 is an apocalyptic number.

121030323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121030323220 is an abundant number, since it is smaller than the sum of its proper divisors (138751436780).

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

121030323220 is a wasteful number, since it uses less digits than its factorization.

121030323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104392 (or 104390 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 121030323220 its reverse (22323030121), we get a palindrome (143353353341).

The spelling of 121030323220 in words is "one hundred twenty-one billion, thirty million, three hundred twenty-three thousand, two hundred twenty".