121121201043342 has 24 divisors (see below), whose sum is σ = 262439422330800. Its totient is φ = 40372171619040.

The previous prime is 121121201043317. The next prime is 121121201043343. The reversal of 121121201043342 is 243340102121121.

121121201043342 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 21 + 201 + 0 + 433 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121201043343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129693634 + ... + 130624197.

It is an arithmetic number, because the mean of its divisors is an integer number (10934975930450).

Almost surely, 2^{121121201043342} is an apocalyptic number.

121121201043342 is an abundant number, since it is smaller than the sum of its proper divisors (141318221287458).

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

121121201043342 is a wasteful number, since it uses less digits than its factorization.

121121201043342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260343688 (or 260343685 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 121121201043342 its reverse (243340102121121), we get a palindrome (364461303164463).

The spelling of 121121201043342 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred one million, forty-three thousand, three hundred forty-two".