101020203003 has 4 divisors (see below), whose sum is σ = 134693604008. Its totient is φ = 67346802000.

The previous prime is 101020202971. The next prime is 101020203007. The reversal of 101020203003 is 300302020101.

It is a happy number.

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

It is not a de Polignac number, because 101020203003 - 2⁵ = 101020202971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101020203003.

It is not an unprimeable number, because it can be changed into a prime (101020203007) 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, 16836700498 + ... + 16836700503.

It is an arithmetic number, because the mean of its divisors is an integer number (33673401002).

Almost surely, 2^101020203003 is an apocalyptic number.

101020203003 is a deficient number, since it is larger than the sum of its proper divisors (33673401005).

101020203003 is an equidigital number, since it uses as much as digits as its factorization.

101020203003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33673401004.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 101020203003 its reverse (300302020101), we get a palindrome (401322223104).

The spelling of 101020203003 in words is "one hundred one billion, twenty million, two hundred three thousand, three".