21013302011189 has 2 divisors, whose sum is σ = 21013302011190. Its totient is φ = 21013302011188.

The previous prime is 21013302011173. The next prime is 21013302011227. The reversal of 21013302011189 is 98111020331012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20628474092164 + 384827919025 = 4541858^2 + 620345^2 .

It is a cyclic number.

It is not a de Polignac number, because 21013302011189 - 2⁴ = 21013302011173 is a prime.

It is a super-2 number, since 2×21013302011189² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21013352011189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506651005594 + 10506651005595.

It is an arithmetic number, because the mean of its divisors is an integer number (10506651005595).

Almost surely, 2^{21013302011189} is an apocalyptic number.

It is an amenable number.

21013302011189 is a deficient number, since it is larger than the sum of its proper divisors (1).

21013302011189 is an equidigital number, since it uses as much as digits as its factorization.

21013302011189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 21013302011189 in words is "twenty-one trillion, thirteen billion, three hundred two million, eleven thousand, one hundred eighty-nine".