23021020219 has 2 divisors, whose sum is σ = 23021020220. Its totient is φ = 23021020218.

The previous prime is 23021020189. The next prime is 23021020223. The reversal of 23021020219 is 91202012032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23021020219 - 2¹¹ = 23021018171 is a prime.

It is a super-2 number, since 2×23021020219² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23021020219.

It is not a weakly prime, because it can be changed into another prime (23021024219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510510109 + 11510510110.

It is an arithmetic number, because the mean of its divisors is an integer number (11510510110).

Almost surely, 2^23021020219 is an apocalyptic number.

23021020219 is a deficient number, since it is larger than the sum of its proper divisors (1).

23021020219 is an equidigital number, since it uses as much as digits as its factorization.

23021020219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 23021020219 in words is "twenty-three billion, twenty-one million, twenty thousand, two hundred nineteen".