100031133212 has 12 divisors (see below), whose sum is σ = 176859169200. Its totient is φ = 49499942016.

The previous prime is 100031133203. The next prime is 100031133229. The reversal of 100031133212 is 212331130001.

It is a super-2 number, since 2×100031133212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 128905712 + ... + 128906487.

It is an arithmetic number, because the mean of its divisors is an integer number (14738264100).

Almost surely, 2^100031133212 is an apocalyptic number.

It is an amenable number.

100031133212 is a deficient number, since it is larger than the sum of its proper divisors (76828035988).

100031133212 is a wasteful number, since it uses less digits than its factorization.

100031133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257812300 (or 257812298 counting only the distinct ones).

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

Adding to 100031133212 its reverse (212331130001), we get a palindrome (312362263213).

The spelling of 100031133212 in words is "one hundred billion, thirty-one million, one hundred thirty-three thousand, two hundred twelve".