100203232122 has 24 divisors (see below), whose sum is σ = 248122289376. Its totient is φ = 28629494856.

The previous prime is 100203232121. The next prime is 100203232127. The reversal of 100203232122 is 221232302001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100203232095 and 100203232104.

It is not an unprimeable number, because it can be changed into a prime (100203232121) by changing a digit.

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, 397631748 + ... + 397631999.

It is an arithmetic number, because the mean of its divisors is an integer number (10338428724).

Almost surely, 2^100203232122 is an apocalyptic number.

100203232122 is an abundant number, since it is smaller than the sum of its proper divisors (147919057254).

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

100203232122 is a wasteful number, since it uses less digits than its factorization.

100203232122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795263762 (or 795263759 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 100203232122 its reverse (221232302001), we get a palindrome (321435534123).

The spelling of 100203232122 in words is "one hundred billion, two hundred three million, two hundred thirty-two thousand, one hundred twenty-two".