20413223031405 has 16 divisors (see below), whose sum is σ = 32670788649984. Its totient is φ = 10883841683520.

The previous prime is 20413223031401. The next prime is 20413223031451. The reversal of 20413223031405 is 50413032231402.

It is not a de Polignac number, because 20413223031405 - 2² = 20413223031401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413223031401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200609934 + ... + 200711663.

It is an arithmetic number, because the mean of its divisors is an integer number (2041924290624).

Almost surely, 2^{20413223031405} is an apocalyptic number.

It is an amenable number.

20413223031405 is a deficient number, since it is larger than the sum of its proper divisors (12257565618579).

20413223031405 is a wasteful number, since it uses less digits than its factorization.

20413223031405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401324996.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20413223031405 its reverse (50413032231402), we get a palindrome (70826255262807).

The spelling of 20413223031405 in words is "twenty trillion, four hundred thirteen billion, two hundred twenty-three million, thirty-one thousand, four hundred five".