100112121982 has 4 divisors (see below), whose sum is σ = 150168182976. Its totient is φ = 50056060990.

The previous prime is 100112121937. The next prime is 100112121983. The reversal of 100112121982 is 289121211001.

100112121982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 100112121982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100112121983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25028030494 + ... + 25028030497.

It is an arithmetic number, because the mean of its divisors is an integer number (37542045744).

Almost surely, 2^100112121982 is an apocalyptic number.

100112121982 is a deficient number, since it is larger than the sum of its proper divisors (50056060994).

100112121982 is an equidigital number, since it uses as much as digits as its factorization.

100112121982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50056060993.

The product of its (nonzero) digits is 576, while the sum is 28.

Adding to 100112121982 its reverse (289121211001), we get a palindrome (389233332983).

The spelling of 100112121982 in words is "one hundred billion, one hundred twelve million, one hundred twenty-one thousand, nine hundred eighty-two".