100312020203 has 4 divisors (see below), whose sum is σ = 100312700880. Its totient is φ = 100311339528.

The previous prime is 100312020169. The next prime is 100312020223. The reversal of 100312020203 is 302020213001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 100312020203 - 2⁸ = 100312019947 is a prime.

It is a super-4 number, since 4×100312020203⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100312020223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16688 + ... + 448221.

It is an arithmetic number, because the mean of its divisors is an integer number (25078175220).

Almost surely, 2^100312020203 is an apocalyptic number.

100312020203 is a deficient number, since it is larger than the sum of its proper divisors (680677).

100312020203 is an equidigital number, since it uses as much as digits as its factorization.

100312020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680676.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 100312020203 its reverse (302020213001), we get a palindrome (402332233204).

The spelling of 100312020203 in words is "one hundred billion, three hundred twelve million, twenty thousand, two hundred three".