100021001203 has 2 divisors, whose sum is σ = 100021001204. Its totient is φ = 100021001202.

The previous prime is 100021001177. The next prime is 100021001239. The reversal of 100021001203 is 302100120001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100021001203 - 2²⁵ = 99987446771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100021001203.

It is not a weakly prime, because it can be changed into another prime (100021001263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010500601 + 50010500602.

It is an arithmetic number, because the mean of its divisors is an integer number (50010500602).

Almost surely, 2^100021001203 is an apocalyptic number.

100021001203 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021001203 is an equidigital number, since it uses as much as digits as its factorization.

100021001203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 100021001203 its reverse (302100120001), we get a palindrome (402121121204).

The spelling of 100021001203 in words is "one hundred billion, twenty-one million, one thousand, two hundred three".