121031230121120 has 48 divisors (see below), whose sum is σ = 311930488543968. Its totient is φ = 44011356407040.

The previous prime is 121031230121071. The next prime is 121031230121149. The reversal of 121031230121120 is 21121032130121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121031230121092 and 121031230121101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34383870434 + ... + 34383873953.

It is an arithmetic number, because the mean of its divisors is an integer number (6498551844666).

Almost surely, 2^{121031230121120} is an apocalyptic number.

121031230121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121031230121120 is an abundant number, since it is smaller than the sum of its proper divisors (190899258422848).

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

121031230121120 is a wasteful number, since it uses less digits than its factorization.

121031230121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68767744413 (or 68767744405 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121031230121120 its reverse (21121032130121), we get a palindrome (142152262251241).

The spelling of 121031230121120 in words is "one hundred twenty-one trillion, thirty-one billion, two hundred thirty million, one hundred twenty-one thousand, one hundred twenty".