10111021331 has 2 divisors, whose sum is σ = 10111021332. Its totient is φ = 10111021330.

The previous prime is 10111021289. The next prime is 10111021363. The reversal of 10111021331 is 13312011101.

It is a happy number.

10111021331 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 10111021331 - 2¹⁸ = 10110759187 is a prime.

It is a super-2 number, since 2×10111021331² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10111021381) 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, 5055510665 + 5055510666.

It is an arithmetic number, because the mean of its divisors is an integer number (5055510666).

Almost surely, 2^10111021331 is an apocalyptic number.

10111021331 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111021331 is an equidigital number, since it uses as much as digits as its factorization.

10111021331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 10111021331 its reverse (13312011101), we get a palindrome (23423032432).

The spelling of 10111021331 in words is "ten billion, one hundred eleven million, twenty-one thousand, three hundred thirty-one".