123012081103 has 2 divisors, whose sum is σ = 123012081104. Its totient is φ = 123012081102.

The previous prime is 123012081089. The next prime is 123012081109. The reversal of 123012081103 is 301180210321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123012081103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123012081109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506040551 + 61506040552.

It is an arithmetic number, because the mean of its divisors is an integer number (61506040552).

Almost surely, 2^123012081103 is an apocalyptic number.

123012081103 is a deficient number, since it is larger than the sum of its proper divisors (1).

123012081103 is an equidigital number, since it uses as much as digits as its factorization.

123012081103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 123012081103 its reverse (301180210321), we get a palindrome (424192291424).

The spelling of 123012081103 in words is "one hundred twenty-three billion, twelve million, eighty-one thousand, one hundred three".