20006456313 has 4 divisors (see below), whose sum is σ = 26675275088. Its totient is φ = 13337637540.

The previous prime is 20006456303. The next prime is 20006456317. The reversal of 20006456313 is 31365460002.

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 not a de Polignac number, because 20006456313 - 2⁹ = 20006455801 is a prime.

It is a super-3 number, since 3×20006456313³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20006456317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3334409383 + ... + 3334409388.

It is an arithmetic number, because the mean of its divisors is an integer number (6668818772).

Almost surely, 2^20006456313 is an apocalyptic number.

It is an amenable number.

20006456313 is a deficient number, since it is larger than the sum of its proper divisors (6668818775).

20006456313 is an equidigital number, since it uses as much as digits as its factorization.

20006456313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6668818774.

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 20006456313 in words is "twenty billion, six million, four hundred fifty-six thousand, three hundred thirteen".