100120101203 has 4 divisors (see below), whose sum is σ = 100192600848. Its totient is φ = 100047601560.

The previous prime is 100120101199. The next prime is 100120101227. The reversal of 100120101203 is 302101021001.

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

It is a cyclic number.

It is not a de Polignac number, because 100120101203 - 2² = 100120101199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100120101253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36247751 + ... + 36250512.

It is an arithmetic number, because the mean of its divisors is an integer number (25048150212).

Almost surely, 2^100120101203 is an apocalyptic number.

100120101203 is a deficient number, since it is larger than the sum of its proper divisors (72499645).

100120101203 is an equidigital number, since it uses as much as digits as its factorization.

100120101203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72499644.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 100120101203 its reverse (302101021001), we get a palindrome (402221122204).

The spelling of 100120101203 in words is "one hundred billion, one hundred twenty million, one hundred one thousand, two hundred three".