11420032021 has 2 divisors, whose sum is σ = 11420032022. Its totient is φ = 11420032020.

The previous prime is 11420031971. The next prime is 11420032031. The reversal of 11420032021 is 12023002411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5732609796 + 5687422225 = 75714^2 + 75415^2 .

It is a cyclic number.

It is not a de Polignac number, because 11420032021 - 2⁷ = 11420031893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11420031986 and 11420032004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11420032031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710016010 + 5710016011.

It is an arithmetic number, because the mean of its divisors is an integer number (5710016011).

Almost surely, 2^11420032021 is an apocalyptic number.

It is an amenable number.

11420032021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11420032021 is an equidigital number, since it uses as much as digits as its factorization.

11420032021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11420032021 its reverse (12023002411), we get a palindrome (23443034432).

The spelling of 11420032021 in words is "eleven billion, four hundred twenty million, thirty-two thousand, twenty-one".