1303321322131 has 4 divisors (see below), whose sum is σ = 1308729294664. Its totient is φ = 1297913349600.

The previous prime is 1303321322129. The next prime is 1303321322137. The reversal of 1303321322131 is 1312231233031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1303321322131 - 2¹ = 1303321322129 is a prime.

It is a super-2 number, since 2×1303321322131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303321322096 and 1303321322105.

It is not an unprimeable number, because it can be changed into a prime (1303321322137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2703985905 + ... + 2703986386.

It is an arithmetic number, because the mean of its divisors is an integer number (327182323666).

Almost surely, 2^{1303321322131} is an apocalyptic number.

1303321322131 is a deficient number, since it is larger than the sum of its proper divisors (5407972533).

1303321322131 is an equidigital number, since it uses as much as digits as its factorization.

1303321322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407972532.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1303321322131 its reverse (1312231233031), we get a palindrome (2615552555162).

The spelling of 1303321322131 in words is "one trillion, three hundred three billion, three hundred twenty-one million, three hundred twenty-two thousand, one hundred thirty-one".