1312002302122 has 16 divisors (see below), whose sum is σ = 1981346380200. Its totient is φ = 651554108352.

The previous prime is 1312002302099. The next prime is 1312002302129. The reversal of 1312002302122 is 2212032002131.

It can be written as a sum of positive squares in 4 ways, for example, as 424922763321 + 887079538801 = 651861^2 + 941849^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1312002302122.

It is not an unprimeable number, because it can be changed into a prime (1312002302129) 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, 4474828 + ... + 4759000.

Almost surely, 2^{1312002302122} is an apocalyptic number.

1312002302122 is a deficient number, since it is larger than the sum of its proper divisors (669344078078).

1312002302122 is a wasteful number, since it uses less digits than its factorization.

1312002302122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299817.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1312002302122 its reverse (2212032002131), we get a palindrome (3524034304253).

The spelling of 1312002302122 in words is "one trillion, three hundred twelve billion, two million, three hundred two thousand, one hundred twenty-two".