1303122312031 has 4 divisors (see below), whose sum is σ = 1348057564200. Its totient is φ = 1258187059864.

The previous prime is 1303122311989. The next prime is 1303122312179. The reversal of 1303122312031 is 1302132213031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303122312031 is a prime.

It is a super-2 number, since 2×1303122312031² (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 = 1303122311993 and 1303122312011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303122312431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22467626041 + ... + 22467626098.

It is an arithmetic number, because the mean of its divisors is an integer number (337014391050).

Almost surely, 2^{1303122312031} is an apocalyptic number.

1303122312031 is a deficient number, since it is larger than the sum of its proper divisors (44935252169).

1303122312031 is an equidigital number, since it uses as much as digits as its factorization.

1303122312031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44935252168.

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

Adding to 1303122312031 its reverse (1302132213031), we get a palindrome (2605254525062).

The spelling of 1303122312031 in words is "one trillion, three hundred three billion, one hundred twenty-two million, three hundred twelve thousand, thirty-one".