100021012203 has 96 divisors (see below), whose sum is σ = 166300646400. Its totient is φ = 53184552960.

The previous prime is 100021012199. The next prime is 100021012207. The reversal of 100021012203 is 302210120001.

It is an interprime number because it is at equal distance from previous prime (100021012199) and next prime (100021012207).

It is not a de Polignac number, because 100021012203 - 2² = 100021012199 is a prime.

It is a super-2 number, since 2×100021012203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100021012207) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 62240026 + ... + 62241632.

It is an arithmetic number, because the mean of its divisors is an integer number (1732298400).

Almost surely, 2^100021012203 is an apocalyptic number.

100021012203 is a deficient number, since it is larger than the sum of its proper divisors (66279634197).

100021012203 is a wasteful number, since it uses less digits than its factorization.

100021012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100021012203 its reverse (302210120001), we get a palindrome (402231132204).

The spelling of 100021012203 in words is "one hundred billion, twenty-one million, twelve thousand, two hundred three".