100031420212 has 12 divisors (see below), whose sum is σ = 175736134980. Its totient is φ = 49821095936.

The previous prime is 100031420197. The next prime is 100031420219. The reversal of 100031420212 is 212024130001.

It can be written as a sum of positive squares in 2 ways, for example, as 83605409316 + 16426010896 = 289146^2 + 128164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100031420219) 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, 48652387 + ... + 48654442.

It is an arithmetic number, because the mean of its divisors is an integer number (14644677915).

Almost surely, 2^100031420212 is an apocalyptic number.

It is an amenable number.

100031420212 is a deficient number, since it is larger than the sum of its proper divisors (75704714768).

100031420212 is a wasteful number, since it uses less digits than its factorization.

100031420212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97307090 (or 97307088 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 100031420212 its reverse (212024130001), we get a palindrome (312055550213).

The spelling of 100031420212 in words is "one hundred billion, thirty-one million, four hundred twenty thousand, two hundred twelve".