20204254313 has 4 divisors (see below), whose sum is σ = 20206166160. Its totient is φ = 20202342468.

The previous prime is 20204254283. The next prime is 20204254337. The reversal of 20204254313 is 31345240202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20204254313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20204454313) 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, 939983 + ... + 961236.

It is an arithmetic number, because the mean of its divisors is an integer number (5051541540).

Almost surely, 2^20204254313 is an apocalyptic number.

It is an amenable number.

20204254313 is a deficient number, since it is larger than the sum of its proper divisors (1911847).

20204254313 is a wasteful number, since it uses less digits than its factorization.

20204254313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911846.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20204254313 its reverse (31345240202), we get a palindrome (51549494515).

The spelling of 20204254313 in words is "twenty billion, two hundred four million, two hundred fifty-four thousand, three hundred thirteen".