121031302120 has 32 divisors (see below), whose sum is σ = 288339280200. Its totient is φ = 45564725248.

The previous prime is 121031302111. The next prime is 121031302159. The reversal of 121031302120 is 21203130121.

121031302120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 82393109764 + 38638192356 = 287042^2 + 196566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121031302094 and 121031302103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88992925 + ... + 88994284.

Almost surely, 2^121031302120 is an apocalyptic number.

121031302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121031302120 is an abundant number, since it is smaller than the sum of its proper divisors (167307978080).

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

121031302120 is a wasteful number, since it uses less digits than its factorization.

121031302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177987237 (or 177987233 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121031302120 its reverse (21203130121), we get a palindrome (142234432241).

The spelling of 121031302120 in words is "one hundred twenty-one billion, thirty-one million, three hundred two thousand, one hundred twenty".