20310003100 has 18 divisors (see below), whose sum is σ = 44072706944. Its totient is φ = 8124001200.

The previous prime is 20310003073. The next prime is 20310003143. The reversal of 20310003100 is 130001302.

It is a super-3 number, since 3×20310003100³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101549916 + ... + 101550115.

Almost surely, 2^20310003100 is an apocalyptic number.

20310003100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310003100 is an abundant number, since it is smaller than the sum of its proper divisors (23762703844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20310003100 is a wasteful number, since it uses less digits than its factorization.

20310003100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203100045 (or 203100038 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 20310003100 its reverse (130001302), we get a palindrome (20440004402).

The spelling of 20310003100 in words is "twenty billion, three hundred ten million, three thousand, one hundred".