1202321121313 has 8 divisors (see below), whose sum is σ = 1297640644328. Its totient is φ = 1107406353024.

The previous prime is 1202321121307. The next prime is 1202321121347. The reversal of 1202321121313 is 3131211232021.

It can be written as a sum of positive squares in 4 ways, for example, as 12057577249 + 1190263544064 = 109807^2 + 1090992^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1202321121313 - 2²¹ = 1202319024161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202321121383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101182506 + ... + 101194387.

It is an arithmetic number, because the mean of its divisors is an integer number (162205080541).

Almost surely, 2^{1202321121313} is an apocalyptic number.

1202321121313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1202321121313 is a deficient number, since it is larger than the sum of its proper divisors (95319523015).

1202321121313 is a wasteful number, since it uses less digits than its factorization.

1202321121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202377363.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1202321121313 its reverse (3131211232021), we get a palindrome (4333532353334).

The spelling of 1202321121313 in words is "one trillion, two hundred two billion, three hundred twenty-one million, one hundred twenty-one thousand, three hundred thirteen".