121040442312 has 32 divisors (see below), whose sum is σ = 302697756000. Its totient is φ = 40333927424.

The previous prime is 121040442293. The next prime is 121040442317. The reversal of 121040442312 is 213244040121.

121040442312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (121040442317) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 728562 + ... + 879137.

It is an arithmetic number, because the mean of its divisors is an integer number (9459304875).

Almost surely, 2^121040442312 is an apocalyptic number.

121040442312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121040442312 is an abundant number, since it is smaller than the sum of its proper divisors (181657313688).

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

121040442312 is a wasteful number, since it uses less digits than its factorization.

121040442312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610845 (or 1610841 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121040442312 its reverse (213244040121), we get a palindrome (334284482433).

The spelling of 121040442312 in words is "one hundred twenty-one billion, forty million, four hundred forty-two thousand, three hundred twelve".