121331140232 has 32 divisors (see below), whose sum is σ = 246479824800. Its totient is φ = 55769167104.

The previous prime is 121331140159. The next prime is 121331140237. The reversal of 121331140232 is 232041133121.

It is a junction number, because it is equal to n+sod(n) for n = 121331140198 and 121331140207.

It is not an unprimeable number, because it can be changed into a prime (121331140237) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10367882 + ... + 10379577.

It is an arithmetic number, because the mean of its divisors is an integer number (7702494525).

Almost surely, 2^121331140232 is an apocalyptic number.

It is an amenable number.

121331140232 is an abundant number, since it is smaller than the sum of its proper divisors (125148684568).

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

121331140232 is a wasteful number, since it uses less digits than its factorization.

121331140232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20747525 (or 20747521 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121331140232 its reverse (232041133121), we get a palindrome (353372273353).

The spelling of 121331140232 in words is "one hundred twenty-one billion, three hundred thirty-one million, one hundred forty thousand, two hundred thirty-two".