121433241342 has 128 divisors (see below), whose sum is σ = 289114914816. Its totient is φ = 33287242752.

The previous prime is 121433241317. The next prime is 121433241359. The reversal of 121433241342 is 243142334121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20485183 + ... + 20491109.

It is an arithmetic number, because the mean of its divisors is an integer number (2258710272).

Almost surely, 2^121433241342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121433241342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144557457408).

121433241342 is an abundant number, since it is smaller than the sum of its proper divisors (167681673474).

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

121433241342 is a wasteful number, since it uses less digits than its factorization.

121433241342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6190.

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

Adding to 121433241342 its reverse (243142334121), we get a palindrome (364575575463).

The spelling of 121433241342 in words is "one hundred twenty-one billion, four hundred thirty-three million, two hundred forty-one thousand, three hundred forty-two".