20212113310427 has 2 divisors, whose sum is σ = 20212113310428. Its totient is φ = 20212113310426.

The previous prime is 20212113310399. The next prime is 20212113310457. The reversal of 20212113310427 is 72401331121202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20212113310427 - 2³⁸ = 19937235403483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20212113310427.

It is not a weakly prime, because it can be changed into another prime (20212113310457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106056655213 + 10106056655214.

It is an arithmetic number, because the mean of its divisors is an integer number (10106056655214).

Almost surely, 2^{20212113310427} is an apocalyptic number.

20212113310427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212113310427 is an equidigital number, since it uses as much as digits as its factorization.

20212113310427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 20212113310427 its reverse (72401331121202), we get a palindrome (92613444431629).

The spelling of 20212113310427 in words is "twenty trillion, two hundred twelve billion, one hundred thirteen million, three hundred ten thousand, four hundred twenty-seven".