100001203031 has 4 divisors (see below), whose sum is σ = 100284492912. Its totient is φ = 99717913152.

The previous prime is 100001203013. The next prime is 100001203051. The reversal of 100001203031 is 130302100001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100001203031 - 2¹⁸ = 100000940887 is a prime.

It is a super-2 number, since 2×100001203031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001203051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141644411 + ... + 141645116.

It is an arithmetic number, because the mean of its divisors is an integer number (25071123228).

Almost surely, 2^100001203031 is an apocalyptic number.

100001203031 is a deficient number, since it is larger than the sum of its proper divisors (283289881).

100001203031 is an equidigital number, since it uses as much as digits as its factorization.

100001203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283289880.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 100001203031 its reverse (130302100001), we get a palindrome (230303303032).

The spelling of 100001203031 in words is "one hundred billion, one million, two hundred three thousand, thirty-one".