100313121203 has 2 divisors, whose sum is σ = 100313121204. Its totient is φ = 100313121202.

The previous prime is 100313121199. The next prime is 100313121257. The reversal of 100313121203 is 302121313001.

It is a weak prime.

It is an emirp because it is prime and its reverse (302121313001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100313121203 - 2² = 100313121199 is a prime.

It is not a weakly prime, because it can be changed into another prime (100313121803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50156560601 + 50156560602.

It is an arithmetic number, because the mean of its divisors is an integer number (50156560602).

Almost surely, 2^100313121203 is an apocalyptic number.

100313121203 is a deficient number, since it is larger than the sum of its proper divisors (1).

100313121203 is an equidigital number, since it uses as much as digits as its factorization.

100313121203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100313121203 its reverse (302121313001), we get a palindrome (402434434204).

The spelling of 100313121203 in words is "one hundred billion, three hundred thirteen million, one hundred twenty-one thousand, two hundred three".