100603201990 has 32 divisors (see below), whose sum is σ = 181429313184. Its totient is φ = 40165009920.

The previous prime is 100603201981. The next prime is 100603202009. The reversal of 100603201990 is 99102306001.

It is a congruent number.

It is an unprimeable number.

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, 15519550 + ... + 15526030.

It is an arithmetic number, because the mean of its divisors is an integer number (5669666037).

Almost surely, 2^100603201990 is an apocalyptic number.

100603201990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100603201990 is a deficient number, since it is larger than the sum of its proper divisors (80826111194).

100603201990 is a wasteful number, since it uses less digits than its factorization.

100603201990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9192.

The product of its (nonzero) digits is 2916, while the sum is 31.

Adding to 100603201990 its reverse (99102306001), we get a palindrome (199705507991).

The spelling of 100603201990 in words is "one hundred billion, six hundred three million, two hundred one thousand, nine hundred ninety".