100203001031 has 8 divisors (see below), whose sum is σ = 114538798464. Its totient is φ = 85872474360.

The previous prime is 100203000971. The next prime is 100203001039. The reversal of 100203001031 is 130100302001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100203001031 is a prime.

It is a super-2 number, since 2×100203001031² (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 (100203001039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276865 + ... + 1353066.

It is an arithmetic number, because the mean of its divisors is an integer number (14317349808).

Almost surely, 2^100203001031 is an apocalyptic number.

100203001031 is a deficient number, since it is larger than the sum of its proper divisors (14335797433).

100203001031 is an equidigital number, since it uses as much as digits as its factorization.

100203001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635381.

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

Adding to 100203001031 its reverse (130100302001), we get a palindrome (230303303032).

The spelling of 100203001031 in words is "one hundred billion, two hundred three million, one thousand, thirty-one".