20320312031203 has 8 divisors (see below), whose sum is σ = 20620239453072. Its totient is φ = 20022230317056.

The previous prime is 20320312031141. The next prime is 20320312031249. The reversal of 20320312031203 is 30213021302302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20320312031203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20320312031263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461404750 + ... + 461448787.

It is an arithmetic number, because the mean of its divisors is an integer number (2577529931634).

Almost surely, 2^{20320312031203} is an apocalyptic number.

20320312031203 is a deficient number, since it is larger than the sum of its proper divisors (299927421869).

20320312031203 is an equidigital number, since it uses as much as digits as its factorization.

20320312031203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922853861.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20320312031203 its reverse (30213021302302), we get a palindrome (50533333333505).

The spelling of 20320312031203 in words is "twenty trillion, three hundred twenty billion, three hundred twelve million, thirty-one thousand, two hundred three".