20234154047 has 2 divisors, whose sum is σ = 20234154048. Its totient is φ = 20234154046.

The previous prime is 20234154029. The next prime is 20234154049. The reversal of 20234154047 is 74045143202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20234154047 - 2¹² = 20234149951 is a prime.

Together with 20234154049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20234154049) 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, 10117077023 + 10117077024.

It is an arithmetic number, because the mean of its divisors is an integer number (10117077024).

Almost surely, 2^20234154047 is an apocalyptic number.

20234154047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20234154047 is an equidigital number, since it uses as much as digits as its factorization.

20234154047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 32.

Adding to 20234154047 its reverse (74045143202), we get a palindrome (94279297249).

The spelling of 20234154047 in words is "twenty billion, two hundred thirty-four million, one hundred fifty-four thousand, forty-seven".