131123103000 has 128 divisors (see below), whose sum is σ = 411711318720. Its totient is φ = 34743321600.

The previous prime is 131123102969. The next prime is 131123103029. The reversal of 131123103000 is 301321131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331804 + ... + 610196.

Almost surely, 2^131123103000 is an apocalyptic number.

131123103000 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 131123103000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205855659360).

131123103000 is an abundant number, since it is smaller than the sum of its proper divisors (280588215720).

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

131123103000 is a wasteful number, since it uses less digits than its factorization.

131123103000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278574 (or 278560 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 131123103000 its reverse (301321131), we get a palindrome (131424424131).

The spelling of 131123103000 in words is "one hundred thirty-one billion, one hundred twenty-three million, one hundred three thousand".