121244131342 has 8 divisors (see below), whose sum is σ = 192564208656. Its totient is φ = 57056061792.

The previous prime is 121244131339. The next prime is 121244131381. The reversal of 121244131342 is 243131442121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121244131342² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121244131342.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1783001898 + ... + 1783001965.

It is an arithmetic number, because the mean of its divisors is an integer number (24070526082).

Almost surely, 2^121244131342 is an apocalyptic number.

121244131342 is a deficient number, since it is larger than the sum of its proper divisors (71320077314).

121244131342 is a wasteful number, since it uses less digits than its factorization.

121244131342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566003882.

The product of its digits is 4608, while the sum is 28.

Adding to 121244131342 its reverse (243131442121), we get a palindrome (364375573463).

The spelling of 121244131342 in words is "one hundred twenty-one billion, two hundred forty-four million, one hundred thirty-one thousand, three hundred forty-two".