1202142304321 has 24 divisors (see below), whose sum is σ = 1398836552832. Its totient is φ = 1011821160000.

The previous prime is 1202142304309. The next prime is 1202142304333. The reversal of 1202142304321 is 1234032412021.

It is an interprime number because it is at equal distance from previous prime (1202142304309) and next prime (1202142304333).

It is not a de Polignac number, because 1202142304321 - 2⁵ = 1202142304289 is a prime.

It is a super-2 number, since 2×1202142304321² (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 (1202142304301) 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 23 ways as a sum of consecutive naturals, for example, 31292301 + ... + 31330693.

It is an arithmetic number, because the mean of its divisors is an integer number (58284856368).

Almost surely, 2^{1202142304321} is an apocalyptic number.

It is an amenable number.

1202142304321 is a deficient number, since it is larger than the sum of its proper divisors (196694248511).

1202142304321 is an frugal number, since it uses more digits than its factorization.

1202142304321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38973 (or 38722 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1202142304321 its reverse (1234032412021), we get a palindrome (2436174716342).

The spelling of 1202142304321 in words is "one trillion, two hundred two billion, one hundred forty-two million, three hundred four thousand, three hundred twenty-one".