1311020002322 has 32 divisors (see below), whose sum is σ = 2112779074032. Its totient is φ = 607908962304.

The previous prime is 1311020002291. The next prime is 1311020002399. The reversal of 1311020002322 is 2232000201131.

It can be written as a sum of positive squares in 8 ways, for example, as 1272584791921 + 38435210401 = 1128089^2 + 196049^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1311020002322.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2308238 + ... + 2819574.

Almost surely, 2^{1311020002322} is an apocalyptic number.

1311020002322 is a deficient number, since it is larger than the sum of its proper divisors (801759071710).

1311020002322 is a wasteful number, since it uses less digits than its factorization.

1311020002322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512462.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1311020002322 its reverse (2232000201131), we get a palindrome (3543020203453).

The spelling of 1311020002322 in words is "one trillion, three hundred eleven billion, twenty million, two thousand, three hundred twenty-two".