20001124134077 has 2 divisors, whose sum is σ = 20001124134078. Its totient is φ = 20001124134076.

The previous prime is 20001124134023. The next prime is 20001124134083. The reversal of 20001124134077 is 77043142110002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15608868049636 + 4392256084441 = 3950806^2 + 2095771^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001124134077 - 2¹² = 20001124129981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001124134097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000562067038 + 10000562067039.

It is an arithmetic number, because the mean of its divisors is an integer number (10000562067039).

Almost surely, 2^{20001124134077} is an apocalyptic number.

It is an amenable number.

20001124134077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001124134077 is an equidigital number, since it uses as much as digits as its factorization.

20001124134077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

Adding to 20001124134077 its reverse (77043142110002), we get a palindrome (97044266244079).

The spelling of 20001124134077 in words is "twenty trillion, one billion, one hundred twenty-four million, one hundred thirty-four thousand, seventy-seven".