21011302119 has 16 divisors (see below), whose sum is σ = 28791804800. Its totient is φ = 13622013216.

The previous prime is 21011302097. The next prime is 21011302121. The reversal of 21011302119 is 91120311012.

It is a happy number.

It is not a de Polignac number, because 21011302119 - 2⁸ = 21011301863 is a prime.

It is a super-2 number, since 2×21011302119² (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 = 21011302095 and 21011302104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011302129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326089 + ... + 385170.

It is an arithmetic number, because the mean of its divisors is an integer number (1799487800).

Almost surely, 2^21011302119 is an apocalyptic number.

21011302119 is a deficient number, since it is larger than the sum of its proper divisors (7780502681).

21011302119 is a wasteful number, since it uses less digits than its factorization.

21011302119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711534.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 21011302119 in words is "twenty-one billion, eleven million, three hundred two thousand, one hundred nineteen".