20201223319 has 2 divisors, whose sum is σ = 20201223320. Its totient is φ = 20201223318.

The previous prime is 20201223281. The next prime is 20201223347. The reversal of 20201223319 is 91332210202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201223319 - 2¹³ = 20201215127 is a prime.

It is a super-2 number, since 2×20201223319² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20201223293 and 20201223302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201221319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100611659 + 10100611660.

It is an arithmetic number, because the mean of its divisors is an integer number (10100611660).

Almost surely, 2^20201223319 is an apocalyptic number.

20201223319 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201223319 is an equidigital number, since it uses as much as digits as its factorization.

20201223319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 20201223319 in words is "twenty billion, two hundred one million, two hundred twenty-three thousand, three hundred nineteen".