131520230044 has 24 divisors (see below), whose sum is σ = 270149663840. Its totient is φ = 54842412096.

The previous prime is 131520230029. The next prime is 131520230047. The reversal of 131520230044 is 440032025131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131520230047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63473979 + ... + 63476050.

Almost surely, 2^131520230044 is an apocalyptic number.

131520230044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131520230044 is an abundant number, since it is smaller than the sum of its proper divisors (138629433796).

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

131520230044 is a wasteful number, since it uses less digits than its factorization.

131520230044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126950077 (or 126950075 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 131520230044 its reverse (440032025131), we get a palindrome (571552255175).

The spelling of 131520230044 in words is "one hundred thirty-one billion, five hundred twenty million, two hundred thirty thousand, forty-four".