131125300040 has 32 divisors (see below), whose sum is σ = 337179343680. Its totient is φ = 44957245632.

The previous prime is 131125300027. The next prime is 131125300057. The reversal of 131125300040 is 40003521131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131125299985 and 131125300021.

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, 234152042 + ... + 234152601.

It is an arithmetic number, because the mean of its divisors is an integer number (10536854490).

Almost surely, 2^131125300040 is an apocalyptic number.

131125300040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131125300040 is an abundant number, since it is smaller than the sum of its proper divisors (206054043640).

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

131125300040 is a wasteful number, since it uses less digits than its factorization.

131125300040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468304661 (or 468304657 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 131125300040 its reverse (40003521131), we get a palindrome (171128821171).

The spelling of 131125300040 in words is "one hundred thirty-one billion, one hundred twenty-five million, three hundred thousand, forty".