100120131220312 has 48 divisors (see below), whose sum is σ = 219471624090000. Its totient is φ = 42693006388032.

The previous prime is 100120131220309. The next prime is 100120131220387. The reversal of 100120131220312 is 213022131021001.

It is a self number, because there is not a number n which added to its sum of digits gives 100120131220312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 641651887 + ... + 641807902.

It is an arithmetic number, because the mean of its divisors is an integer number (4572325501875).

Almost surely, 2^{100120131220312} is an apocalyptic number.

It is an amenable number.

100120131220312 is an abundant number, since it is smaller than the sum of its proper divisors (119351492869688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100120131220312 is a wasteful number, since it uses less digits than its factorization.

100120131220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283460008 (or 1283459997 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 100120131220312 its reverse (213022131021001), we get a palindrome (313142262241313).

The spelling of 100120131220312 in words is "one hundred trillion, one hundred twenty billion, one hundred thirty-one million, two hundred twenty thousand, three hundred twelve".