10111110011021 has 2 divisors, whose sum is σ = 10111110011022. Its totient is φ = 10111110011020.

The previous prime is 10111110010973. The next prime is 10111110011033. The reversal of 10111110011021 is 12011001111101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9616908040996 + 494201970025 = 3101114^2 + 702995^2 .

It is an emirp because it is prime and its reverse (12011001111101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10111110011021 - 2⁶ = 10111110010957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10111110010993 and 10111110011011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111110011521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055555005510 + 5055555005511.

It is an arithmetic number, because the mean of its divisors is an integer number (5055555005511).

Almost surely, 2^{10111110011021} is an apocalyptic number.

It is an amenable number.

10111110011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111110011021 is an equidigital number, since it uses as much as digits as its factorization.

10111110011021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 10111110011021 its reverse (12011001111101), we get a palindrome (22122111122122).

The spelling of 10111110011021 in words is "ten trillion, one hundred eleven billion, one hundred ten million, eleven thousand, twenty-one".