20333042400427 has 2 divisors, whose sum is σ = 20333042400428. Its totient is φ = 20333042400426.

The previous prime is 20333042400421. The next prime is 20333042400431. The reversal of 20333042400427 is 72400424033302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20333042400427 - 2⁴³ = 11536949378219 is a prime.

It is a super-2 number, since 2×20333042400427² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20333042400392 and 20333042400401.

It is not a weakly prime, because it can be changed into another prime (20333042400421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166521200213 + 10166521200214.

It is an arithmetic number, because the mean of its divisors is an integer number (10166521200214).

Almost surely, 2^{20333042400427} is an apocalyptic number.

20333042400427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333042400427 is an equidigital number, since it uses as much as digits as its factorization.

20333042400427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 34.

Adding to 20333042400427 its reverse (72400424033302), we get a palindrome (92733466433729).

The spelling of 20333042400427 in words is "twenty trillion, three hundred thirty-three billion, forty-two million, four hundred thousand, four hundred twenty-seven".