20413042031 has 2 divisors, whose sum is σ = 20413042032. Its totient is φ = 20413042030.

The previous prime is 20413042019. The next prime is 20413042033. The reversal of 20413042031 is 13024031402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20413042031 - 2³⁰ = 19339300207 is a prime.

It is a super-2 number, since 2×20413042031² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 20413042033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20413041994 and 20413042012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20413042033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206521015 + 10206521016.

It is an arithmetic number, because the mean of its divisors is an integer number (10206521016).

Almost surely, 2^20413042031 is an apocalyptic number.

20413042031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413042031 is an equidigital number, since it uses as much as digits as its factorization.

20413042031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20413042031 its reverse (13024031402), we get a palindrome (33437073433).

The spelling of 20413042031 in words is "twenty billion, four hundred thirteen million, forty-two thousand, thirty-one".