123100355103 has 32 divisors (see below), whose sum is σ = 190550257920. Its totient is φ = 69861173760.

The previous prime is 123100355089. The next prime is 123100355113. The reversal of 123100355103 is 301553001321.

It is not a de Polignac number, because 123100355103 - 2⁴ = 123100355087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100355113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446413 + ... + 667446.

It is an arithmetic number, because the mean of its divisors is an integer number (5954695560).

Almost surely, 2^123100355103 is an apocalyptic number.

123100355103 is a deficient number, since it is larger than the sum of its proper divisors (67449902817).

123100355103 is a wasteful number, since it uses less digits than its factorization.

123100355103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114087.

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 123100355103 its reverse (301553001321), we get a palindrome (424653356424).

The spelling of 123100355103 in words is "one hundred twenty-three billion, one hundred million, three hundred fifty-five thousand, one hundred three".