10121033491 has 2 divisors, whose sum is σ = 10121033492. Its totient is φ = 10121033490.

The previous prime is 10121033423. The next prime is 10121033501. The reversal of 10121033491 is 19433012101.

10121033491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10121033491 - 2¹¹ = 10121031443 is a prime.

It is not a weakly prime, because it can be changed into another prime (10121033591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060516745 + 5060516746.

It is an arithmetic number, because the mean of its divisors is an integer number (5060516746).

Almost surely, 2^10121033491 is an apocalyptic number.

10121033491 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121033491 is an equidigital number, since it uses as much as digits as its factorization.

10121033491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 10121033491 its reverse (19433012101), we get a palindrome (29554045592).

The spelling of 10121033491 in words is "ten billion, one hundred twenty-one million, thirty-three thousand, four hundred ninety-one".