21711020119 has 4 divisors (see below), whose sum is σ = 21722576560. Its totient is φ = 21699463680.

The previous prime is 21711020101. The next prime is 21711020137. The reversal of 21711020119 is 91102011712.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (21711020101) and next prime (21711020137).

It is a cyclic number.

It is not a de Polignac number, because 21711020119 - 2⁵ = 21711020087 is a prime.

It is a super-2 number, since 2×21711020119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21711020093 and 21711020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21711020519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5775402 + ... + 5779159.

It is an arithmetic number, because the mean of its divisors is an integer number (5430644140).

Almost surely, 2^21711020119 is an apocalyptic number.

21711020119 is a deficient number, since it is larger than the sum of its proper divisors (11556441).

21711020119 is a wasteful number, since it uses less digits than its factorization.

21711020119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11556440.

The product of its (nonzero) digits is 252, while the sum is 25.

The spelling of 21711020119 in words is "twenty-one billion, seven hundred eleven million, twenty thousand, one hundred nineteen".