11111020210523 has 2 divisors, whose sum is σ = 11111020210524. Its totient is φ = 11111020210522.

The previous prime is 11111020210517. The next prime is 11111020210529. The reversal of 11111020210523 is 32501202011111.

It is a balanced prime because it is at equal distance from previous prime (11111020210517) and next prime (11111020210529).

It is an emirp because it is prime and its reverse (32501202011111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111020210523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111020210495 and 11111020210504.

It is not a weakly prime, because it can be changed into another prime (11111020210529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555510105261 + 5555510105262.

It is an arithmetic number, because the mean of its divisors is an integer number (5555510105262).

Almost surely, 2^{11111020210523} is an apocalyptic number.

11111020210523 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111020210523 is an equidigital number, since it uses as much as digits as its factorization.

11111020210523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 11111020210523 its reverse (32501202011111), we get a palindrome (43612222221634).

The spelling of 11111020210523 in words is "eleven trillion, one hundred eleven billion, twenty million, two hundred ten thousand, five hundred twenty-three".