121223140044342 has 24 divisors (see below), whose sum is σ = 282029346226296. Its totient is φ = 34635182869728.

The previous prime is 121223140044317. The next prime is 121223140044527. The reversal of 121223140044342 is 243440041322121.

121223140044342 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206161802503 + ... + 206161803090.

It is an arithmetic number, because the mean of its divisors is an integer number (11751222759429).

Almost surely, 2^{121223140044342} is an apocalyptic number.

121223140044342 is an abundant number, since it is smaller than the sum of its proper divisors (160806206181954).

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

121223140044342 is a wasteful number, since it uses less digits than its factorization.

121223140044342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412323605612 (or 412323605605 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 121223140044342 its reverse (243440041322121), we get a palindrome (364663181366463).

The spelling of 121223140044342 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, one hundred forty million, forty-four thousand, three hundred forty-two".