123110311003 has 4 divisors (see below), whose sum is σ = 123169988448. Its totient is φ = 123050633560.

The previous prime is 123110310989. The next prime is 123110311013. The reversal of 123110311003 is 300113011321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300113011321 = 4801 ⋅62510521.

It is a cyclic number.

It is not a de Polignac number, because 123110311003 - 2⁵ = 123110310971 is a prime.

It is a super-2 number, since 2×123110311003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123110311013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29835628 + ... + 29839753.

It is an arithmetic number, because the mean of its divisors is an integer number (30792497112).

Almost surely, 2^123110311003 is an apocalyptic number.

123110311003 is a deficient number, since it is larger than the sum of its proper divisors (59677445).

123110311003 is an equidigital number, since it uses as much as digits as its factorization.

123110311003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59677444.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 123110311003 its reverse (300113011321), we get a palindrome (423223322324).

The spelling of 123110311003 in words is "one hundred twenty-three billion, one hundred ten million, three hundred eleven thousand, three".