100131210103 has 4 divisors (see below), whose sum is σ = 100141834528. Its totient is φ = 100120585680.

The previous prime is 100131210073. The next prime is 100131210119. The reversal of 100131210103 is 301012131001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301012131001 = 293 ⋅1027345157.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100131210103 is a prime.

It is a super-2 number, since 2×100131210103² (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 (100131210133) 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, 5298063 + ... + 5316928.

It is an arithmetic number, because the mean of its divisors is an integer number (25035458632).

Almost surely, 2^100131210103 is an apocalyptic number.

100131210103 is a deficient number, since it is larger than the sum of its proper divisors (10624425).

100131210103 is an equidigital number, since it uses as much as digits as its factorization.

100131210103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10624424.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 100131210103 its reverse (301012131001), we get a palindrome (401143341104).

The spelling of 100131210103 in words is "one hundred billion, one hundred thirty-one million, two hundred ten thousand, one hundred three".