20201223347 has 2 divisors, whose sum is σ = 20201223348. Its totient is φ = 20201223346.

The previous prime is 20201223319. The next prime is 20201223373. The reversal of 20201223347 is 74332210202.

It is a happy number.

It is an a-pointer prime, because the next prime (20201223373) can be obtained adding 20201223347 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201223347 - 2²² = 20197029043 is a prime.

It is not a weakly prime, because it can be changed into another prime (20201223397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100611673 + 10100611674.

It is an arithmetic number, because the mean of its divisors is an integer number (10100611674).

Almost surely, 2^20201223347 is an apocalyptic number.

20201223347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201223347 is an equidigital number, since it uses as much as digits as its factorization.

20201223347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

Adding to 20201223347 its reverse (74332210202), we get a palindrome (94533433549).

The spelling of 20201223347 in words is "twenty billion, two hundred one million, two hundred twenty-three thousand, three hundred forty-seven".