123103125215120 has 40 divisors (see below), whose sum is σ = 290906811483000. Its totient is φ = 48434016476160.

The previous prime is 123103125215099. The next prime is 123103125215159. The reversal of 123103125215120 is 21512521301321.

It can be written as a sum of positive squares in 4 ways, for example, as 120614511616 + 122982510703504 = 347296^2 + 11089748^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×123103125215120² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12613020245 + ... + 12613030004.

It is an arithmetic number, because the mean of its divisors is an integer number (7272670287075).

Almost surely, 2^{123103125215120} is an apocalyptic number.

123103125215120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123103125215120 is an abundant number, since it is smaller than the sum of its proper divisors (167803686267880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123103125215120 is a wasteful number, since it uses less digits than its factorization.

123103125215120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25226050323 (or 25226050317 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 123103125215120 its reverse (21512521301321), we get a palindrome (144615646516441).

The spelling of 123103125215120 in words is "one hundred twenty-three trillion, one hundred three billion, one hundred twenty-five million, two hundred fifteen thousand, one hundred twenty".