20234201047 has 4 divisors (see below), whose sum is σ = 20234763360. Its totient is φ = 20233638736.

The previous prime is 20234201041. The next prime is 20234201077. The reversal of 20234201047 is 74010243202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20234201047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234201041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223198 + ... + 300475.

It is an arithmetic number, because the mean of its divisors is an integer number (5058690840).

Almost surely, 2^20234201047 is an apocalyptic number.

20234201047 is a deficient number, since it is larger than the sum of its proper divisors (562313).

20234201047 is an equidigital number, since it uses as much as digits as its factorization.

20234201047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562312.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 20234201047 its reverse (74010243202), we get a palindrome (94244444249).

The spelling of 20234201047 in words is "twenty billion, two hundred thirty-four million, two hundred one thousand, forty-seven".