123506037500 has 36 divisors (see below), whose sum is σ = 270152193528. Its totient is φ = 49402410000.

The previous prime is 123506037439. The next prime is 123506037503. The reversal of 123506037500 is 5730605321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123506037503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4927742 + ... + 4952741.

It is an arithmetic number, because the mean of its divisors is an integer number (7504227598).

Almost surely, 2^123506037500 is an apocalyptic number.

123506037500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123506037500 is an abundant number, since it is smaller than the sum of its proper divisors (146646156028).

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

123506037500 is an frugal number, since it uses more digits than its factorization.

123506037500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880512 (or 9880490 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The spelling of 123506037500 in words is "one hundred twenty-three billion, five hundred six million, thirty-seven thousand, five hundred".