10111023521 has 2 divisors, whose sum is σ = 10111023522. Its totient is φ = 10111023520.

The previous prime is 10111023511. The next prime is 10111023523. The reversal of 10111023521 is 12532011101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5581733521 + 4529290000 = 74711^2 + 67300^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111023521 - 2²² = 10106829217 is a prime.

Together with 10111023523, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10111023521.

It is not a weakly prime, because it can be changed into another prime (10111023523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055511760 + 5055511761.

It is an arithmetic number, because the mean of its divisors is an integer number (5055511761).

Almost surely, 2^10111023521 is an apocalyptic number.

It is an amenable number.

10111023521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111023521 is an equidigital number, since it uses as much as digits as its factorization.

10111023521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 10111023521 its reverse (12532011101), we get a palindrome (22643034622).

The spelling of 10111023521 in words is "ten billion, one hundred eleven million, twenty-three thousand, five hundred twenty-one".