20413104031 has 4 divisors (see below), whose sum is σ = 21117004200. Its totient is φ = 19709203864.

The previous prime is 20413104029. The next prime is 20413104053. The reversal of 20413104031 is 13040131402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20413104031 - 2¹ = 20413104029 is a prime.

It is a super-2 number, since 2×20413104031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413104091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351950041 + ... + 351950098.

It is an arithmetic number, because the mean of its divisors is an integer number (5279251050).

Almost surely, 2^20413104031 is an apocalyptic number.

20413104031 is a deficient number, since it is larger than the sum of its proper divisors (703900169).

20413104031 is an equidigital number, since it uses as much as digits as its factorization.

20413104031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703900168.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20413104031 its reverse (13040131402), we get a palindrome (33453235433).

The spelling of 20413104031 in words is "twenty billion, four hundred thirteen million, one hundred four thousand, thirty-one".