123250100124040 has 16 divisors (see below), whose sum is σ = 277312725279180. Its totient is φ = 49300040049600.

The previous prime is 123250100124017. The next prime is 123250100124049. The reversal of 123250100124040 is 40421001052321.

It can be written as a sum of positive squares in 2 ways, for example, as 120796409710564 + 2453690413476 = 10990742^2 + 1566426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123250100123996 and 123250100124014.

It is not an unprimeable number, because it can be changed into a prime (123250100124049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540626251511 + ... + 1540626251590.

Almost surely, 2^{123250100124040} is an apocalyptic number.

123250100124040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123250100124040 is an abundant number, since it is smaller than the sum of its proper divisors (154062625155140).

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

123250100124040 is a wasteful number, since it uses less digits than its factorization.

123250100124040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081252503112 (or 3081252503108 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 123250100124040 its reverse (40421001052321), we get a palindrome (163671101176361).

The spelling of 123250100124040 in words is "one hundred twenty-three trillion, two hundred fifty billion, one hundred million, one hundred twenty-four thousand, forty".