1342121302321 has 4 divisors (see below), whose sum is σ = 1344384576612. Its totient is φ = 1339858028032.

The previous prime is 1342121302273. The next prime is 1342121302349. The reversal of 1342121302321 is 1232031212431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 490028000400 + 852093301921 = 700020^2 + 923089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342121302321 - 2¹⁷ = 1342121171249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342121302721) 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, 1131636256 + ... + 1131637441.

It is an arithmetic number, because the mean of its divisors is an integer number (336096144153).

Almost surely, 2^{1342121302321} is an apocalyptic number.

It is an amenable number.

1342121302321 is a deficient number, since it is larger than the sum of its proper divisors (2263274291).

1342121302321 is an equidigital number, since it uses as much as digits as its factorization.

1342121302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263274290.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1342121302321 its reverse (1232031212431), we get a palindrome (2574152514752).

The spelling of 1342121302321 in words is "one trillion, three hundred forty-two billion, one hundred twenty-one million, three hundred two thousand, three hundred twenty-one".