11421020400019 has 2 divisors, whose sum is σ = 11421020400020. Its totient is φ = 11421020400018.

The previous prime is 11421020399969. The next prime is 11421020400107. The reversal of 11421020400019 is 91000402012411.

11421020400019 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 is a cyclic number.

It is not a de Polignac number, because 11421020400019 - 2⁷ = 11421020399891 is a prime.

It is a super-2 number, since 2×11421020400019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11421020399966 and 11421020400002.

It is not a weakly prime, because it can be changed into another prime (11421020400919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710510200009 + 5710510200010.

It is an arithmetic number, because the mean of its divisors is an integer number (5710510200010).

Almost surely, 2^{11421020400019} is an apocalyptic number.

11421020400019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421020400019 is an equidigital number, since it uses as much as digits as its factorization.

11421020400019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 11421020400019 in words is "eleven trillion, four hundred twenty-one billion, twenty million, four hundred thousand, nineteen".