121832551140 has 48 divisors (see below), whose sum is σ = 347567588928. Its totient is φ = 31875685504.

The previous prime is 121832551129. The next prime is 121832551151. The reversal of 121832551140 is 41155238121.

It is an interprime number because it is at equal distance from previous prime (121832551129) and next prime (121832551151).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19152882 + ... + 19159241.

It is an arithmetic number, because the mean of its divisors is an integer number (7240991436).

Almost surely, 2^121832551140 is an apocalyptic number.

121832551140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121832551140 is an abundant number, since it is smaller than the sum of its proper divisors (225735037788).

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

121832551140 is a wasteful number, since it uses less digits than its factorization.

121832551140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38312188 (or 38312186 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

Adding to 121832551140 its reverse (41155238121), we get a palindrome (162987789261).

The spelling of 121832551140 in words is "one hundred twenty-one billion, eight hundred thirty-two million, five hundred fifty-one thousand, one hundred forty".