10202120200103 has 4 divisors (see below), whose sum is σ = 10986898677048. Its totient is φ = 9417341723160.

The previous prime is 10202120200099. The next prime is 10202120200147. The reversal of 10202120200103 is 30100202120201.

It is a happy number.

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 10202120200103 - 2² = 10202120200099 is a prime.

It is a super-2 number, since 2×10202120200103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202120202103) 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 3 ways as a sum of consecutive naturals, for example, 392389238453 + ... + 392389238478.

It is an arithmetic number, because the mean of its divisors is an integer number (2746724669262).

Almost surely, 2^{10202120200103} is an apocalyptic number.

10202120200103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10202120200103 is a deficient number, since it is larger than the sum of its proper divisors (784778476945).

10202120200103 is an equidigital number, since it uses as much as digits as its factorization.

10202120200103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784778476944.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10202120200103 its reverse (30100202120201), we get a palindrome (40302322320304).

The spelling of 10202120200103 in words is "ten trillion, two hundred two billion, one hundred twenty million, two hundred thousand, one hundred three".