1212440341342 has 8 divisors (see below), whose sum is σ = 1818670754736. Its totient is φ = 606216756432.

The previous prime is 1212440341331. The next prime is 1212440341349. The reversal of 1212440341342 is 2431430442121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212440341349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237378 + ... + 1988965.

It is an arithmetic number, because the mean of its divisors is an integer number (227333844342).

Almost surely, 2^{1212440341342} is an apocalyptic number.

1212440341342 is a deficient number, since it is larger than the sum of its proper divisors (606230413394).

1212440341342 is a wasteful number, since it uses less digits than its factorization.

1212440341342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414242.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1212440341342 its reverse (2431430442121), we get a palindrome (3643870783463).

The spelling of 1212440341342 in words is "one trillion, two hundred twelve billion, four hundred forty million, three hundred forty-one thousand, three hundred forty-two".