203100232123 has 2 divisors, whose sum is σ = 203100232124. Its totient is φ = 203100232122.

The previous prime is 203100232117. The next prime is 203100232141. The reversal of 203100232123 is 321232001302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203100232123 - 2²⁵ = 203066677691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203100232123.

It is not a weakly prime, because it can be changed into another prime (203100236123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101550116061 + 101550116062.

It is an arithmetic number, because the mean of its divisors is an integer number (101550116062).

Almost surely, 2^203100232123 is an apocalyptic number.

203100232123 is a deficient number, since it is larger than the sum of its proper divisors (1).

203100232123 is an equidigital number, since it uses as much as digits as its factorization.

203100232123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203100232123 its reverse (321232001302), we get a palindrome (524332233425).

The spelling of 203100232123 in words is "two hundred three billion, one hundred million, two hundred thirty-two thousand, one hundred twenty-three".