1013103121291 has 2 divisors, whose sum is σ = 1013103121292. Its totient is φ = 1013103121290.

The previous prime is 1013103121279. The next prime is 1013103121321. The reversal of 1013103121291 is 1921213013101.

It is a weak prime.

It is an emirp because it is prime and its reverse (1921213013101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013103121291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1013103121201) 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 as a sum of consecutive naturals, namely, 506551560645 + 506551560646.

It is an arithmetic number, because the mean of its divisors is an integer number (506551560646).

Almost surely, 2^{1013103121291} is an apocalyptic number.

1013103121291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013103121291 is an equidigital number, since it uses as much as digits as its factorization.

1013103121291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

Adding to 1013103121291 its reverse (1921213013101), we get a palindrome (2934316134392).

The spelling of 1013103121291 in words is "one trillion, thirteen billion, one hundred three million, one hundred twenty-one thousand, two hundred ninety-one".