21211326323419 has 2 divisors, whose sum is σ = 21211326323420. Its totient is φ = 21211326323418.

The previous prime is 21211326323381. The next prime is 21211326323423. The reversal of 21211326323419 is 91432362311212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21211326323419 - 2¹¹ = 21211326321371 is a prime.

It is a super-2 number, since 2×21211326323419² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21211326323459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605663161709 + 10605663161710.

It is an arithmetic number, because the mean of its divisors is an integer number (10605663161710).

Almost surely, 2^{21211326323419} is an apocalyptic number.

21211326323419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21211326323419 is an equidigital number, since it uses as much as digits as its factorization.

21211326323419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The spelling of 21211326323419 in words is "twenty-one trillion, two hundred eleven billion, three hundred twenty-six million, three hundred twenty-three thousand, four hundred nineteen".