20413431313 has 8 divisors (see below), whose sum is σ = 22287972960. Its totient is φ = 18542018880.

The previous prime is 20413431287. The next prime is 20413431341. The reversal of 20413431313 is 31313431402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20413431313 - 2²⁹ = 19876560401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20413431013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768648 + ... + 794761.

It is an arithmetic number, because the mean of its divisors is an integer number (2785996620).

Almost surely, 2^20413431313 is an apocalyptic number.

It is an amenable number.

20413431313 is a deficient number, since it is larger than the sum of its proper divisors (1874541647).

20413431313 is a wasteful number, since it uses less digits than its factorization.

20413431313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564607.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20413431313 its reverse (31313431402), we get a palindrome (51726862715).

The spelling of 20413431313 in words is "twenty billion, four hundred thirteen million, four hundred thirty-one thousand, three hundred thirteen".