11111411030021 has 2 divisors, whose sum is σ = 11111411030022. Its totient is φ = 11111411030020.

The previous prime is 11111411030009. The next prime is 11111411030053. The reversal of 11111411030021 is 12003011411111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5631551401921 + 5479859628100 = 2373089^2 + 2340910^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111411030021 - 2¹⁰ = 11111411028997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111411030521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555705515010 + 5555705515011.

It is an arithmetic number, because the mean of its divisors is an integer number (5555705515011).

Almost surely, 2^{11111411030021} is an apocalyptic number.

It is an amenable number.

11111411030021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111411030021 is an equidigital number, since it uses as much as digits as its factorization.

11111411030021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 11111411030021 its reverse (12003011411111), we get a palindrome (23114422441132).

The spelling of 11111411030021 in words is "eleven trillion, one hundred eleven billion, four hundred eleven million, thirty thousand, twenty-one".