131123441000 has 32 divisors (see below), whose sum is σ = 306828854280. Its totient is φ = 52449376000.

The previous prime is 131123440997. The next prime is 131123441063. The reversal of 131123441000 is 144321131.

It can be written as a sum of positive squares in 4 ways, for example, as 69372184996 + 61751256004 = 263386^2 + 248498^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65560721 + ... + 65562720.

Almost surely, 2^131123441000 is an apocalyptic number.

131123441000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131123441000 is an abundant number, since it is smaller than the sum of its proper divisors (175705413280).

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

131123441000 is a wasteful number, since it uses less digits than its factorization.

131123441000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131123462 (or 131123448 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131123441000 its reverse (144321131), we get a palindrome (131267762131).

The spelling of 131123441000 in words is "one hundred thirty-one billion, one hundred twenty-three million, four hundred forty-one thousand".