121031120000000 has 352 divisors, whose sum is σ = 345635065171968. Its totient is φ = 41496192000000.

The previous prime is 121031119999949. The next prime is 121031120000017. The reversal of 121031120000000 is 21130121.

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 31 ways as a sum of consecutive naturals, for example, 559891937 + ... + 560108063.

It is an arithmetic number, because the mean of its divisors is an integer number (981917798784).

Almost surely, 2^{121031120000000} is an apocalyptic number.

121031120000000 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 121031120000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172817532585984).

121031120000000 is an abundant number, since it is smaller than the sum of its proper divisors (224603945171968).

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

121031120000000 is an frugal number, since it uses more digits than its factorization.

121031120000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216189 (or 216141 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 121031120000000 its reverse (21130121), we get a palindrome (121031141130121).

The spelling of 121031120000000 in words is "one hundred twenty-one trillion, thirty-one billion, one hundred twenty million", and thus it is an aban number.