20123410021027 has 2 divisors, whose sum is σ = 20123410021028. Its totient is φ = 20123410021026.

The previous prime is 20123410021007. The next prime is 20123410021051. The reversal of 20123410021027 is 72012001432102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20123410021027 - 2³¹ = 20121262537379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20123410020992 and 20123410021010.

It is not a weakly prime, because it can be changed into another prime (20123410021007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061705010513 + 10061705010514.

It is an arithmetic number, because the mean of its divisors is an integer number (10061705010514).

Almost surely, 2^{20123410021027} is an apocalyptic number.

20123410021027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123410021027 is an equidigital number, since it uses as much as digits as its factorization.

20123410021027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 20123410021027 its reverse (72012001432102), we get a palindrome (92135411453129).

The spelling of 20123410021027 in words is "twenty trillion, one hundred twenty-three billion, four hundred ten million, twenty-one thousand, twenty-seven".