10101100203 has 12 divisors (see below), whose sum is σ = 14616038008. Its totient is φ = 6722269920.

The previous prime is 10101100151. The next prime is 10101100213. The reversal of 10101100203 is 30200110101.

It is not a de Polignac number, because 10101100203 - 2⁹ = 10101099691 is a prime.

It is a super-2 number, since 2×10101100203² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10101100213) 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, 977650 + ... + 987927.

Almost surely, 2^10101100203 is an apocalyptic number.

10101100203 is a deficient number, since it is larger than the sum of its proper divisors (4514937805).

10101100203 is a wasteful number, since it uses less digits than its factorization.

10101100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966154 (or 1966151 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 10101100203 its reverse (30200110101), we get a palindrome (40301210304).

The spelling of 10101100203 in words is "ten billion, one hundred one million, one hundred thousand, two hundred three".