131203123000 has 64 divisors (see below), whose sum is σ = 307839280320. Its totient is φ = 52340400000.

The previous prime is 131203122997. The next prime is 131203123001. The reversal of 131203123000 is 321302131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131203123001) 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 15 ways as a sum of consecutive naturals, for example, 197125 + ... + 548875.

It is an arithmetic number, because the mean of its divisors is an integer number (4809988755).

Almost surely, 2^131203123000 is an apocalyptic number.

131203123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131203123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153919640160).

131203123000 is an abundant number, since it is smaller than the sum of its proper divisors (176636157320).

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

131203123000 is a wasteful number, since it uses less digits than its factorization.

131203123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352145 (or 352131 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 131203123000 its reverse (321302131), we get a palindrome (131524425131).

The spelling of 131203123000 in words is "one hundred thirty-one billion, two hundred three million, one hundred twenty-three thousand".