1303002031081 has 2 divisors, whose sum is σ = 1303002031082. Its totient is φ = 1303002031080.

The previous prime is 1303002030989. The next prime is 1303002031087. The reversal of 1303002031081 is 1801302003031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 911490278400 + 391511752681 = 954720^2 + 625709^2 .

It is an emirp because it is prime and its reverse (1801302003031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1303002031081 - 2¹⁵ = 1303001998313 is a prime.

It is a super-2 number, since 2×1303002031081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1303002031087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651501015540 + 651501015541.

It is an arithmetic number, because the mean of its divisors is an integer number (651501015541).

Almost surely, 2^{1303002031081} is an apocalyptic number.

It is an amenable number.

1303002031081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303002031081 is an equidigital number, since it uses as much as digits as its factorization.

1303002031081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 1303002031081 in words is "one trillion, three hundred three billion, two million, thirty-one thousand, eighty-one".