131121323000 has 96 divisors (see below), whose sum is σ = 325934753040. Its totient is φ = 49363212800.

The previous prime is 131121322993. The next prime is 131121323033. The reversal of 131121323000 is 323121131.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 131121323000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62147 + ... + 515853.

Almost surely, 2^131121323000 is an apocalyptic number.

131121323000 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 131121323000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162967376520).

131121323000 is an abundant number, since it is smaller than the sum of its proper divisors (194813430040).

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

131121323000 is a wasteful number, since it uses less digits than its factorization.

131121323000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453762 (or 453731 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131121323000 its reverse (323121131), we get a palindrome (131444444131).

The spelling of 131121323000 in words is "one hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-three thousand".