121132320120 has 96 divisors (see below), whose sum is σ = 449920055520. Its totient is φ = 27687386880.

The previous prime is 121132320119. The next prime is 121132320131. The reversal of 121132320120 is 21023231121.

121132320120 is a `hidden beast` number, since 121 + 1 + 323 + 201 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121132320093 and 121132320102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24031671 + ... + 24036710.

It is an arithmetic number, because the mean of its divisors is an integer number (4686667245).

Almost surely, 2^121132320120 is an apocalyptic number.

121132320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121132320120 is an abundant number, since it is smaller than the sum of its proper divisors (328787735400).

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

121132320120 is a wasteful number, since it uses less digits than its factorization.

121132320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48068405 (or 48068398 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121132320120 its reverse (21023231121), we get a palindrome (142155551241).

The spelling of 121132320120 in words is "one hundred twenty-one billion, one hundred thirty-two million, three hundred twenty thousand, one hundred twenty".