10011021719 has 2 divisors, whose sum is σ = 10011021720. Its totient is φ = 10011021718.

The previous prime is 10011021697. The next prime is 10011021751. The reversal of 10011021719 is 91712011001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10011021719 - 2³² = 5716054423 is a prime.

It is a super-2 number, since 2×10011021719² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10011021694 and 10011021703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011026719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005510859 + 5005510860.

It is an arithmetic number, because the mean of its divisors is an integer number (5005510860).

Almost surely, 2^10011021719 is an apocalyptic number.

10011021719 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011021719 is an equidigital number, since it uses as much as digits as its factorization.

10011021719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 23.

The spelling of 10011021719 in words is "ten billion, eleven million, twenty-one thousand, seven hundred nineteen".