1344121361542 has 32 divisors (see below), whose sum is σ = 2095368992640. Its totient is φ = 646131012480.

The previous prime is 1344121361533. The next prime is 1344121361641. The reversal of 1344121361542 is 2451631214431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2733192 + ... + 3187252.

It is an arithmetic number, because the mean of its divisors is an integer number (65480281020).

Almost surely, 2^{1344121361542} is an apocalyptic number.

1344121361542 is a deficient number, since it is larger than the sum of its proper divisors (751247631098).

1344121361542 is a wasteful number, since it uses less digits than its factorization.

1344121361542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454576.

The product of its digits is 69120, while the sum is 37.

Adding to 1344121361542 its reverse (2451631214431), we get a palindrome (3795752575973).

The spelling of 1344121361542 in words is "one trillion, three hundred forty-four billion, one hundred twenty-one million, three hundred sixty-one thousand, five hundred forty-two".