123011343107 has 2 divisors, whose sum is σ = 123011343108. Its totient is φ = 123011343106.

The previous prime is 123011343089. The next prime is 123011343113. The reversal of 123011343107 is 701343110321.

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-123011343107 is a prime.

It is not a weakly prime, because it can be changed into another prime (123011343157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505671553 + 61505671554.

It is an arithmetic number, because the mean of its divisors is an integer number (61505671554).

Almost surely, 2^123011343107 is an apocalyptic number.

123011343107 is a deficient number, since it is larger than the sum of its proper divisors (1).

123011343107 is an equidigital number, since it uses as much as digits as its factorization.

123011343107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 123011343107 its reverse (701343110321), we get a palindrome (824354453428).

The spelling of 123011343107 in words is "one hundred twenty-three billion, eleven million, three hundred forty-three thousand, one hundred seven".