123103131101 has 32 divisors (see below), whose sum is σ = 132320563200. Its totient is φ = 114124032000.

The previous prime is 123103131089. The next prime is 123103131103. The reversal of 123103131101 is 101131301321.

It is a cyclic number.

It is not a de Polignac number, because 123103131101 - 2¹⁰ = 123103130077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123103131101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123103131103) 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, 204830201 + ... + 204830801.

It is an arithmetic number, because the mean of its divisors is an integer number (4135017600).

Almost surely, 2^123103131101 is an apocalyptic number.

It is an amenable number.

123103131101 is a deficient number, since it is larger than the sum of its proper divisors (9217432099).

123103131101 is a wasteful number, since it uses less digits than its factorization.

123103131101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 123103131101 its reverse (101131301321), we get a palindrome (224234432422).

The spelling of 123103131101 in words is "one hundred twenty-three billion, one hundred three million, one hundred thirty-one thousand, one hundred one".