121134243342 has 32 divisors (see below), whose sum is σ = 293165229312. Its totient is φ = 32573913984.

The previous prime is 121134243341. The next prime is 121134243389. The reversal of 121134243342 is 243342431121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121134243341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84827188 + ... + 84828615.

It is an arithmetic number, because the mean of its divisors is an integer number (9161413416).

Almost surely, 2^121134243342 is an apocalyptic number.

121134243342 is an abundant number, since it is smaller than the sum of its proper divisors (172030985970).

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

121134243342 is a wasteful number, since it uses less digits than its factorization.

121134243342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169655832.

The product of its digits is 13824, while the sum is 30.

Adding to 121134243342 its reverse (243342431121), we get a palindrome (364476674463).

The spelling of 121134243342 in words is "one hundred twenty-one billion, one hundred thirty-four million, two hundred forty-three thousand, three hundred forty-two".