10002120100203 has 16 divisors (see below), whose sum is σ = 16626900946176. Its totient is φ = 5195906545440.

The previous prime is 10002120100171. The next prime is 10002120100237. The reversal of 10002120100203 is 30200102120001.

It is not a de Polignac number, because 10002120100203 - 2⁵ = 10002120100171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10002120108203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21649610376 + ... + 21649610837.

It is an arithmetic number, because the mean of its divisors is an integer number (1039181309136).

Almost surely, 2^{10002120100203} is an apocalyptic number.

10002120100203 is a deficient number, since it is larger than the sum of its proper divisors (6624780845973).

10002120100203 is a wasteful number, since it uses less digits than its factorization.

10002120100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43299221234.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10002120100203 its reverse (30200102120001), we get a palindrome (40202222220204).

The spelling of 10002120100203 in words is "ten trillion, two billion, one hundred twenty million, one hundred thousand, two hundred three".