11012000001421 has 2 divisors, whose sum is σ = 11012000001422. Its totient is φ = 11012000001420.

The previous prime is 11012000001397. The next prime is 11012000001451. The reversal of 11012000001421 is 12410000021011.

11012000001421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8129512512900 + 2882487488521 = 2851230^2 + 1697789^2 .

It is an emirp because it is prime and its reverse (12410000021011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11012000001421 - 2⁹ = 11012000000909 is a prime.

It is a super-2 number, since 2×11012000001421² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11012000001451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506000000710 + 5506000000711.

It is an arithmetic number, because the mean of its divisors is an integer number (5506000000711).

Almost surely, 2^{11012000001421} is an apocalyptic number.

It is an amenable number.

11012000001421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012000001421 is an equidigital number, since it uses as much as digits as its factorization.

11012000001421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11012000001421 its reverse (12410000021011), we get a palindrome (23422000022432).

The spelling of 11012000001421 in words is "eleven trillion, twelve billion, one thousand, four hundred twenty-one".