20311300213 has 8 divisors (see below), whose sum is σ = 20355492920. Its totient is φ = 20267133120.

The previous prime is 20311300211. The next prime is 20311300241. The reversal of 20311300213 is 31200311302.

It can be written as a sum of positive squares in 4 ways, for example, as 1172514564 + 19138785649 = 34242^2 + 138343^2 .

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 20311300213 - 2¹ = 20311300211 is a prime.

It is a super-2 number, since 2×20311300213² (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 (20311300211) 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 7 ways as a sum of consecutive naturals, for example, 3171931 + ... + 3178327.

It is an arithmetic number, because the mean of its divisors is an integer number (2544436615).

Almost surely, 2^20311300213 is an apocalyptic number.

It is an amenable number.

20311300213 is a deficient number, since it is larger than the sum of its proper divisors (44192707).

20311300213 is an equidigital number, since it uses as much as digits as its factorization.

20311300213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12807.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20311300213 its reverse (31200311302), we get a palindrome (51511611515).

The spelling of 20311300213 in words is "twenty billion, three hundred eleven million, three hundred thousand, two hundred thirteen".