1342120013321 has 4 divisors (see below), whose sum is σ = 1342123132932. Its totient is φ = 1342116893712.

The previous prime is 1342120013317. The next prime is 1342120013329. The reversal of 1342120013321 is 1233100212431.

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 397454593600 + 944665419721 = 630440^2 + 971939^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342120013321 - 2² = 1342120013317 is a prime.

It is a super-2 number, since 2×1342120013321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342120013329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 786770 + ... + 1817483.

It is an arithmetic number, because the mean of its divisors is an integer number (335530783233).

Almost surely, 2^{1342120013321} is an apocalyptic number.

It is an amenable number.

1342120013321 is a deficient number, since it is larger than the sum of its proper divisors (3119611).

1342120013321 is an equidigital number, since it uses as much as digits as its factorization.

1342120013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119610.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1342120013321 its reverse (1233100212431), we get a palindrome (2575220225752).

The spelling of 1342120013321 in words is "one trillion, three hundred forty-two billion, one hundred twenty million, thirteen thousand, three hundred twenty-one".