123100131320203 has 2 divisors, whose sum is σ = 123100131320204. Its totient is φ = 123100131320202.

The previous prime is 123100131320189. The next prime is 123100131320291. The reversal of 123100131320203 is 302023131001321.

It is a weak prime.

It is an emirp because it is prime and its reverse (302023131001321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123100131320203 - 2⁹ = 123100131319691 is a prime.

It is a super-2 number, since 2×123100131320203² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123100131320303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61550065660101 + 61550065660102.

It is an arithmetic number, because the mean of its divisors is an integer number (61550065660102).

Almost surely, 2^{123100131320203} is an apocalyptic number.

123100131320203 is a deficient number, since it is larger than the sum of its proper divisors (1).

123100131320203 is an equidigital number, since it uses as much as digits as its factorization.

123100131320203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123100131320203 its reverse (302023131001321), we get a palindrome (425123262321524).

The spelling of 123100131320203 in words is "one hundred twenty-three trillion, one hundred billion, one hundred thirty-one million, three hundred twenty thousand, two hundred three".