100131321203 has 4 divisors (see below), whose sum is σ = 105401390760. Its totient is φ = 94861251648.

The previous prime is 100131321197. The next prime is 100131321239. The reversal of 100131321203 is 302123131001.

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 100131321203 - 2⁴ = 100131321187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100131321253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2635034750 + ... + 2635034787.

It is an arithmetic number, because the mean of its divisors is an integer number (26350347690).

Almost surely, 2^100131321203 is an apocalyptic number.

100131321203 is a deficient number, since it is larger than the sum of its proper divisors (5270069557).

100131321203 is an equidigital number, since it uses as much as digits as its factorization.

100131321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5270069556.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100131321203 its reverse (302123131001), we get a palindrome (402254452204).

The spelling of 100131321203 in words is "one hundred billion, one hundred thirty-one million, three hundred twenty-one thousand, two hundred three".