123130340003 has 4 divisors (see below), whose sum is σ = 134324007288. Its totient is φ = 111936672720.

The previous prime is 123130339991. The next prime is 123130340027. The reversal of 123130340003 is 300043031321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123130340003 - 2²² = 123126145699 is a prime.

It is a super-2 number, since 2×123130340003² (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 (123130343003) 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, 5596833626 + ... + 5596833647.

It is an arithmetic number, because the mean of its divisors is an integer number (33581001822).

Almost surely, 2^123130340003 is an apocalyptic number.

123130340003 is a deficient number, since it is larger than the sum of its proper divisors (11193667285).

123130340003 is a wasteful number, since it uses less digits than its factorization.

123130340003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193667284.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123130340003 its reverse (300043031321), we get a palindrome (423173371324).

The spelling of 123130340003 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred forty thousand, three".