20315432646303 has 4 divisors (see below), whose sum is σ = 27087243528408. Its totient is φ = 13543621764200.

The previous prime is 20315432646281. The next prime is 20315432646319. The reversal of 20315432646303 is 30364623451302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20315432646303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315432646203) 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, 3385905441048 + ... + 3385905441053.

It is an arithmetic number, because the mean of its divisors is an integer number (6771810882102).

Almost surely, 2^{20315432646303} is an apocalyptic number.

20315432646303 is a deficient number, since it is larger than the sum of its proper divisors (6771810882105).

20315432646303 is an equidigital number, since it uses as much as digits as its factorization.

20315432646303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771810882104.

The product of its (nonzero) digits is 933120, while the sum is 42.

The spelling of 20315432646303 in words is "twenty trillion, three hundred fifteen billion, four hundred thirty-two million, six hundred forty-six thousand, three hundred three".