100203203122 has 64 divisors (see below), whose sum is σ = 178644797568. Its totient is φ = 41641600000.

The previous prime is 100203203101. The next prime is 100203203147. The reversal of 100203203122 is 221302302001.

It is a junction number, because it is equal to n+sod(n) for n = 100203203096 and 100203203105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1976997 + ... + 2027047.

It is an arithmetic number, because the mean of its divisors is an integer number (2791324962).

Almost surely, 2^100203203122 is an apocalyptic number.

100203203122 is a deficient number, since it is larger than the sum of its proper divisors (78441594446).

100203203122 is a wasteful number, since it uses less digits than its factorization.

100203203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50235.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 100203203122 its reverse (221302302001), we get a palindrome (321505505123).

The spelling of 100203203122 in words is "one hundred billion, two hundred three million, two hundred three thousand, one hundred twenty-two".