2003013032981 has 2 divisors, whose sum is σ = 2003013032982. Its totient is φ = 2003013032980.

The previous prime is 2003013032959. The next prime is 2003013033079. The reversal of 2003013032981 is 1892303103002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1785940904881 + 217072128100 = 1336391^2 + 465910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2003013032981 is a prime.

It is a super-2 number, since 2×2003013032981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003013032681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001506516490 + 1001506516491.

It is an arithmetic number, because the mean of its divisors is an integer number (1001506516491).

Almost surely, 2^{2003013032981} is an apocalyptic number.

It is an amenable number.

2003013032981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003013032981 is an equidigital number, since it uses as much as digits as its factorization.

2003013032981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

Adding to 2003013032981 its reverse (1892303103002), we get a palindrome (3895316135983).

The spelling of 2003013032981 in words is "two trillion, three billion, thirteen million, thirty-two thousand, nine hundred eighty-one".