20123010201277 has 2 divisors, whose sum is σ = 20123010201278. Its totient is φ = 20123010201276.

The previous prime is 20123010201269. The next prime is 20123010201319. The reversal of 20123010201277 is 77210201032102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19705262561721 + 417747639556 = 4439061^2 + 646334^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123010201277 - 2³ = 20123010201269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123010201977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061505100638 + 10061505100639.

It is an arithmetic number, because the mean of its divisors is an integer number (10061505100639).

Almost surely, 2^{20123010201277} is an apocalyptic number.

It is an amenable number.

20123010201277 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123010201277 is an equidigital number, since it uses as much as digits as its factorization.

20123010201277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

Adding to 20123010201277 its reverse (77210201032102), we get a palindrome (97333211233379).

The spelling of 20123010201277 in words is "twenty trillion, one hundred twenty-three billion, ten million, two hundred one thousand, two hundred seventy-seven".