1310123302321 has 16 divisors (see below), whose sum is σ = 1321627556304. Its totient is φ = 1298674499584.

The previous prime is 1310123302297. The next prime is 1310123302331. The reversal of 1310123302321 is 1232033210131.

It can be written as a sum of positive squares in 8 ways, for example, as 153554259600 + 1156569042721 = 391860^2 + 1075439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310123302321 - 2¹⁹ = 1310122778033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310123302292 and 1310123302301.

It is not an unprimeable number, because it can be changed into a prime (1310123302331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88796481 + ... + 88811233.

It is an arithmetic number, because the mean of its divisors is an integer number (82601722269).

Almost surely, 2^{1310123302321} is an apocalyptic number.

It is an amenable number.

1310123302321 is a deficient number, since it is larger than the sum of its proper divisors (11504253983).

1310123302321 is a wasteful number, since it uses less digits than its factorization.

1310123302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16580.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1310123302321 its reverse (1232033210131), we get a palindrome (2542156512452).

The spelling of 1310123302321 in words is "one trillion, three hundred ten billion, one hundred twenty-three million, three hundred two thousand, three hundred twenty-one".