123011503107 has 8 divisors (see below), whose sum is σ = 173663298576. Its totient is φ = 77183688192.

The previous prime is 123011503099. The next prime is 123011503127. The reversal of 123011503107 is 701305110321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123011503107 - 2³ = 123011503099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123011503127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205995078 + ... + 1205995179.

It is an arithmetic number, because the mean of its divisors is an integer number (21707912322).

Almost surely, 2^123011503107 is an apocalyptic number.

123011503107 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

123011503107 is a deficient number, since it is larger than the sum of its proper divisors (50651795469).

123011503107 is a wasteful number, since it uses less digits than its factorization.

123011503107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411990277.

The product of its (nonzero) digits is 630, while the sum is 24.

Adding to 123011503107 its reverse (701305110321), we get a palindrome (824316613428).

The spelling of 123011503107 in words is "one hundred twenty-three billion, eleven million, five hundred three thousand, one hundred seven".