100987543122 has 32 divisors (see below), whose sum is σ = 202401364032. Its totient is φ = 33591530304.

The previous prime is 100987543099. The next prime is 100987543123. The reversal of 100987543122 is 221345789001.

It is not an unprimeable number, because it can be changed into a prime (100987543123) 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 15 ways as a sum of consecutive naturals, for example, 7817793 + ... + 7830699.

It is an arithmetic number, because the mean of its divisors is an integer number (6325042626).

Almost surely, 2^100987543122 is an apocalyptic number.

100987543122 is an abundant number, since it is smaller than the sum of its proper divisors (101413820910).

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

100987543122 is a wasteful number, since it uses less digits than its factorization.

100987543122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15562.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 100987543122 in words is "one hundred billion, nine hundred eighty-seven million, five hundred forty-three thousand, one hundred twenty-two".