100220431312 has 10 divisors (see below), whose sum is σ = 194177085698. Its totient is φ = 50110215648.

The previous prime is 100220431303. The next prime is 100220431327. The reversal of 100220431312 is 213134022001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 88706282896 + 11514148416 = 297836^2 + 107304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100220431312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3131888463 + ... + 3131888494.

Almost surely, 2^100220431312 is an apocalyptic number.

It is an amenable number.

100220431312 is a deficient number, since it is larger than the sum of its proper divisors (93956654386).

100220431312 is an equidigital number, since it uses as much as digits as its factorization.

100220431312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263776965 (or 6263776959 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100220431312 its reverse (213134022001), we get a palindrome (313354453313).

The spelling of 100220431312 in words is "one hundred billion, two hundred twenty million, four hundred thirty-one thousand, three hundred twelve".