20210340127 has 2 divisors, whose sum is σ = 20210340128. Its totient is φ = 20210340126.

The previous prime is 20210340121. The next prime is 20210340179. The reversal of 20210340127 is 72104301202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20210340127 - 2¹⁹ = 20209815839 is a prime.

It is a super-2 number, since 2×20210340127² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20210340098 and 20210340107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210340121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105170063 + 10105170064.

It is an arithmetic number, because the mean of its divisors is an integer number (10105170064).

Almost surely, 2^20210340127 is an apocalyptic number.

20210340127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210340127 is an equidigital number, since it uses as much as digits as its factorization.

20210340127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 20210340127 its reverse (72104301202), we get a palindrome (92314641329).

The spelling of 20210340127 in words is "twenty billion, two hundred ten million, three hundred forty thousand, one hundred twenty-seven".