21111532086419 has 2 divisors, whose sum is σ = 21111532086420. Its totient is φ = 21111532086418.

The previous prime is 21111532086377. The next prime is 21111532086443. The reversal of 21111532086419 is 91468023511112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21111532086419 - 2¹² = 21111532082323 is a prime.

It is a super-2 number, since 2×21111532086419² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21111532086419.

It is not a weakly prime, because it can be changed into another prime (21111552086419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555766043209 + 10555766043210.

It is an arithmetic number, because the mean of its divisors is an integer number (10555766043210).

Almost surely, 2^{21111532086419} is an apocalyptic number.

21111532086419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21111532086419 is an equidigital number, since it uses as much as digits as its factorization.

21111532086419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 21111532086419 in words is "twenty-one trillion, one hundred eleven billion, five hundred thirty-two million, eighty-six thousand, four hundred nineteen".