100031231133 has 12 divisors (see below), whose sum is σ = 145839927168. Its totient is φ = 66064239240.

The previous prime is 100031231081. The next prime is 100031231137. The reversal of 100031231133 is 331132130001.

It is a happy number.

100031231133 is a `hidden beast` number, since 10 + 0 + 0 + 312 + 311 + 33 = 666.

It is not a de Polignac number, because 100031231133 - 2¹⁷ = 100031100061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100031231137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51936333 + ... + 51938258.

It is an arithmetic number, because the mean of its divisors is an integer number (12153327264).

Almost surely, 2^100031231133 is an apocalyptic number.

It is an amenable number.

100031231133 is a deficient number, since it is larger than the sum of its proper divisors (45808696035).

100031231133 is a wasteful number, since it uses less digits than its factorization.

100031231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103874704 (or 103874701 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 100031231133 its reverse (331132130001), we get a palindrome (431163361134).

The spelling of 100031231133 in words is "one hundred billion, thirty-one million, two hundred thirty-one thousand, one hundred thirty-three".