20426121426311 has 2 divisors, whose sum is σ = 20426121426312. Its totient is φ = 20426121426310.

The previous prime is 20426121426301. The next prime is 20426121426323. The reversal of 20426121426311 is 11362412162402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20426121426311 - 2¹⁴ = 20426121409927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20426121426301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10213060713155 + 10213060713156.

It is an arithmetic number, because the mean of its divisors is an integer number (10213060713156).

Almost surely, 2^{20426121426311} is an apocalyptic number.

20426121426311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20426121426311 is an equidigital number, since it uses as much as digits as its factorization.

20426121426311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 20426121426311 its reverse (11362412162402), we get a palindrome (31788533588713).

The spelling of 20426121426311 in words is "twenty trillion, four hundred twenty-six billion, one hundred twenty-one million, four hundred twenty-six thousand, three hundred eleven".