1303121109931 has 2 divisors, whose sum is σ = 1303121109932. Its totient is φ = 1303121109930.

The previous prime is 1303121109881. The next prime is 1303121110043. The reversal of 1303121109931 is 1399011213031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1303121109931 - 2¹³ = 1303121101739 is a prime.

It is a super-2 number, since 2×1303121109931² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1303121199931) by changing a digit.

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 as a sum of consecutive naturals, namely, 651560554965 + 651560554966.

It is an arithmetic number, because the mean of its divisors is an integer number (651560554966).

Almost surely, 2^{1303121109931} is an apocalyptic number.

1303121109931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303121109931 is an equidigital number, since it uses as much as digits as its factorization.

1303121109931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 34.

The spelling of 1303121109931 in words is "one trillion, three hundred three billion, one hundred twenty-one million, one hundred nine thousand, nine hundred thirty-one".