131323043000 has 128 divisors (see below), whose sum is σ = 314226432000. Its totient is φ = 51357571200.

The previous prime is 131323042969. The next prime is 131323043041. The reversal of 131323043000 is 340323131.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 8128931 + ... + 8145069.

It is an arithmetic number, because the mean of its divisors is an integer number (2454894000).

Almost surely, 2^131323043000 is an apocalyptic number.

131323043000 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 131323043000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157113216000).

131323043000 is an abundant number, since it is smaller than the sum of its proper divisors (182903389000).

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

131323043000 is a wasteful number, since it uses less digits than its factorization.

131323043000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16342 (or 16328 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 131323043000 its reverse (340323131), we get a palindrome (131663366131).

The spelling of 131323043000 in words is "one hundred thirty-one billion, three hundred twenty-three million, forty-three thousand".