20313110203 has 16 divisors (see below), whose sum is σ = 20629271520. Its totient is φ = 19999584000.

The previous prime is 20313110201. The next prime is 20313110287. The reversal of 20313110203 is 30201131302.

It is a cyclic number.

It is not a de Polignac number, because 20313110203 - 2¹ = 20313110201 is a prime.

It is a super-2 number, since 2×20313110203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313110201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23702151 + ... + 23703007.

It is an arithmetic number, because the mean of its divisors is an integer number (1289329470).

Almost surely, 2^20313110203 is an apocalyptic number.

20313110203 is a deficient number, since it is larger than the sum of its proper divisors (316161317).

20313110203 is a wasteful number, since it uses less digits than its factorization.

20313110203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998.

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

Adding to 20313110203 its reverse (30201131302), we get a palindrome (50514241505).

The spelling of 20313110203 in words is "twenty billion, three hundred thirteen million, one hundred ten thousand, two hundred three".