123011123003 has 2 divisors, whose sum is σ = 123011123004. Its totient is φ = 123011123002.

The previous prime is 123011122999. The next prime is 123011123023. The reversal of 123011123003 is 300321110321.

It is a weak prime.

It is an emirp because it is prime and its reverse (300321110321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123011123003 - 2² = 123011122999 is a prime.

It is not a weakly prime, because it can be changed into another prime (123011123023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505561501 + 61505561502.

It is an arithmetic number, because the mean of its divisors is an integer number (61505561502).

Almost surely, 2^123011123003 is an apocalyptic number.

123011123003 is a deficient number, since it is larger than the sum of its proper divisors (1).

123011123003 is an equidigital number, since it uses as much as digits as its factorization.

123011123003 is an odious number, because the sum of its binary digits is odd.

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

Adding to 123011123003 its reverse (300321110321), we get a palindrome (423332233324).

The spelling of 123011123003 in words is "one hundred twenty-three billion, eleven million, one hundred twenty-three thousand, three".