131323123000 has 256 divisors, whose sum is σ = 335579811840. Its totient is φ = 47960704000.

The previous prime is 131323122961. The next prime is 131323123033. The reversal of 131323123000 is 321323131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44319519 + ... + 44322481.

It is an arithmetic number, because the mean of its divisors is an integer number (1310858640).

Almost surely, 2^131323123000 is an apocalyptic number.

131323123000 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 131323123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167789905920).

131323123000 is an abundant number, since it is smaller than the sum of its proper divisors (204256688840).

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

131323123000 is a wasteful number, since it uses less digits than its factorization.

131323123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095 (or 3081 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131323123000 its reverse (321323131), we get a palindrome (131644446131).

The spelling of 131323123000 in words is "one hundred thirty-one billion, three hundred twenty-three million, one hundred twenty-three thousand".