1302121232213 has 8 divisors (see below), whose sum is σ = 1315600825560. Its totient is φ = 1288642775040.

The previous prime is 1302121232161. The next prime is 1302121232221. The reversal of 1302121232213 is 3122321212031.

It can be written as a sum of positive squares in 4 ways, for example, as 426365903089 + 875755329124 = 652967^2 + 935818^2 .

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 1302121232213 - 2¹⁸ = 1302120970069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302121238213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125133 + ... + 2668413.

It is an arithmetic number, because the mean of its divisors is an integer number (164450103195).

Almost surely, 2^{1302121232213} is an apocalyptic number.

It is an amenable number.

1302121232213 is a deficient number, since it is larger than the sum of its proper divisors (13479593347).

1302121232213 is an equidigital number, since it uses as much as digits as its factorization.

1302121232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568087.

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

Adding to 1302121232213 its reverse (3122321212031), we get a palindrome (4424442444244).

The spelling of 1302121232213 in words is "one trillion, three hundred two billion, one hundred twenty-one million, two hundred thirty-two thousand, two hundred thirteen".