20310700705 has 8 divisors (see below), whose sum is σ = 24374072232. Its totient is φ = 16247739648.

The previous prime is 20310700703. The next prime is 20310700723. The reversal of 20310700705 is 50700701302.

It can be written as a sum of positive squares in 4 ways, for example, as 958273936 + 19352426769 = 30956^2 + 139113^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20310700705 - 2¹ = 20310700703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20310700705.

It is not an unprimeable number, because it can be changed into a prime (20310700703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19447 + ... + 202483.

It is an arithmetic number, because the mean of its divisors is an integer number (3046759029).

Almost surely, 2^20310700705 is an apocalyptic number.

It is an amenable number.

20310700705 is a deficient number, since it is larger than the sum of its proper divisors (4063371527).

20310700705 is a wasteful number, since it uses less digits than its factorization.

20310700705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205235.

The product of its (nonzero) digits is 1470, while the sum is 25.

The spelling of 20310700705 in words is "twenty billion, three hundred ten million, seven hundred thousand, seven hundred five".