1310003103321 has 48 divisors (see below), whose sum is σ = 2083839488640. Its totient is φ = 786414773760.

The previous prime is 1310003103319. The next prime is 1310003103329. The reversal of 1310003103321 is 1233013000131.

It is a happy number.

1310003103321 is a `hidden beast` number, since 1 + 31 + 0 + 0 + 0 + 310 + 3 + 321 = 666.

It is not a de Polignac number, because 1310003103321 - 2¹ = 1310003103319 is a prime.

It is a super-2 number, since 2×1310003103321² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1310003103294 and 1310003103303.

It is not an unprimeable number, because it can be changed into a prime (1310003103329) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17941075 + ... + 18013943.

It is an arithmetic number, because the mean of its divisors is an integer number (43413322680).

Almost surely, 2^{1310003103321} is an apocalyptic number.

1310003103321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1310003103321 is a deficient number, since it is larger than the sum of its proper divisors (773836385319).

1310003103321 is a wasteful number, since it uses less digits than its factorization.

1310003103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74606 (or 74603 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1310003103321 its reverse (1233013000131), we get a palindrome (2543016103452).

The spelling of 1310003103321 in words is "one trillion, three hundred ten billion, three million, one hundred three thousand, three hundred twenty-one".