20234212247 has 2 divisors, whose sum is σ = 20234212248. Its totient is φ = 20234212246.

The previous prime is 20234212231. The next prime is 20234212463. The reversal of 20234212247 is 74221243202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20234212247 - 2⁴ = 20234212231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20234212147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10117106123 + 10117106124.

It is an arithmetic number, because the mean of its divisors is an integer number (10117106124).

Almost surely, 2^20234212247 is an apocalyptic number.

20234212247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20234212247 is an equidigital number, since it uses as much as digits as its factorization.

20234212247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 29.

Adding to 20234212247 its reverse (74221243202), we get a palindrome (94455455449).

The spelling of 20234212247 in words is "twenty billion, two hundred thirty-four million, two hundred twelve thousand, two hundred forty-seven".