21110283619 has 2 divisors, whose sum is σ = 21110283620. Its totient is φ = 21110283618.

The previous prime is 21110283587. The next prime is 21110283631. The reversal of 21110283619 is 91638201112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21110283619 - 2⁵ = 21110283587 is a prime.

It is a super-2 number, since 2×21110283619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21110203619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555141809 + 10555141810.

It is an arithmetic number, because the mean of its divisors is an integer number (10555141810).

Almost surely, 2^21110283619 is an apocalyptic number.

21110283619 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110283619 is an equidigital number, since it uses as much as digits as its factorization.

21110283619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 21110283619 in words is "twenty-one billion, one hundred ten million, two hundred eighty-three thousand, six hundred nineteen".