20211003100 has 36 divisors (see below), whose sum is σ = 44173431400. Its totient is φ = 8026234560.

The previous prime is 20211003091. The next prime is 20211003101. The reversal of 20211003100 is 130011202.

It is a super-2 number, since 2×20211003100² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211003101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 713115 + ... + 740914.

Almost surely, 2^20211003100 is an apocalyptic number.

20211003100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211003100 is an abundant number, since it is smaller than the sum of its proper divisors (23962428300).

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

20211003100 is a wasteful number, since it uses less digits than its factorization.

20211003100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454182 (or 1454175 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20211003100 its reverse (130011202), we get a palindrome (20341014302).

The spelling of 20211003100 in words is "twenty billion, two hundred eleven million, three thousand, one hundred".