20335465313 has 4 divisors (see below), whose sum is σ = 20340136980. Its totient is φ = 20330793648.

The previous prime is 20335465307. The next prime is 20335465321. The reversal of 20335465313 is 31356453302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18876836449 + 1458628864 = 137393^2 + 38192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20335465313 is a prime.

It is a super-2 number, since 2×20335465313² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20335465303) 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, 2329298 + ... + 2338011.

It is an arithmetic number, because the mean of its divisors is an integer number (5085034245).

Almost surely, 2^20335465313 is an apocalyptic number.

It is an amenable number.

20335465313 is a deficient number, since it is larger than the sum of its proper divisors (4671667).

20335465313 is an equidigital number, since it uses as much as digits as its factorization.

20335465313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671666.

The product of its (nonzero) digits is 97200, while the sum is 35.

The spelling of 20335465313 in words is "twenty billion, three hundred thirty-five million, four hundred sixty-five thousand, three hundred thirteen".