1013331113281 has 2 divisors, whose sum is σ = 1013331113282. Its totient is φ = 1013331113280.

The previous prime is 1013331113269. The next prime is 1013331113303. The reversal of 1013331113281 is 1823111333101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755682490000 + 257648623281 = 869300^2 + 507591^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013331113281 - 2³⁷ = 875892159809 is a prime.

It is a super-2 number, since 2×1013331113281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1013331111281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506665556640 + 506665556641.

It is an arithmetic number, because the mean of its divisors is an integer number (506665556641).

Almost surely, 2^{1013331113281} is an apocalyptic number.

It is an amenable number.

1013331113281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013331113281 is an equidigital number, since it uses as much as digits as its factorization.

1013331113281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 1013331113281 its reverse (1823111333101), we get a palindrome (2836442446382).

The spelling of 1013331113281 in words is "one trillion, thirteen billion, three hundred thirty-one million, one hundred thirteen thousand, two hundred eighty-one".