131240826020 has 24 divisors (see below), whose sum is σ = 280277020800. Its totient is φ = 51606561632.

The previous prime is 131240825999. The next prime is 131240826071. The reversal of 131240826020 is 20628042131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55609340 + ... + 55611699.

It is an arithmetic number, because the mean of its divisors is an integer number (11678209200).

Almost surely, 2^131240826020 is an apocalyptic number.

131240826020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131240826020 is an abundant number, since it is smaller than the sum of its proper divisors (149036194780).

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

131240826020 is a wasteful number, since it uses less digits than its factorization.

131240826020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111221107 (or 111221105 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 131240826020 its reverse (20628042131), we get a palindrome (151868868151).

The spelling of 131240826020 in words is "one hundred thirty-one billion, two hundred forty million, eight hundred twenty-six thousand, twenty".