20126330103431 has 2 divisors, whose sum is σ = 20126330103432. Its totient is φ = 20126330103430.

The previous prime is 20126330103427. The next prime is 20126330103437. The reversal of 20126330103431 is 13430103362102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20126330103431 - 2² = 20126330103427 is a prime.

It is a super-2 number, since 2×20126330103431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20126330103394 and 20126330103403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20126330103437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10063165051715 + 10063165051716.

It is an arithmetic number, because the mean of its divisors is an integer number (10063165051716).

Almost surely, 2^{20126330103431} is an apocalyptic number.

20126330103431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20126330103431 is an equidigital number, since it uses as much as digits as its factorization.

20126330103431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 20126330103431 its reverse (13430103362102), we get a palindrome (33556433465533).

The spelling of 20126330103431 in words is "twenty trillion, one hundred twenty-six billion, three hundred thirty million, one hundred three thousand, four hundred thirty-one".