131020044 has 12 divisors (see below), whose sum is σ = 305713464. Its totient is φ = 43673344.

The previous prime is 131020031. The next prime is 131020049. The reversal of 131020044 is 440020131.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (131020049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5459157 + ... + 5459180.

It is an arithmetic number, because the mean of its divisors is an integer number (25476122).

Almost surely, 2^131020044 is an apocalyptic number.

It is an amenable number.

131020044 is an abundant number, since it is smaller than the sum of its proper divisors (174693420).

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

131020044 is a wasteful number, since it uses less digits than its factorization.

131020044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10918344 (or 10918342 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 131020044 is about 11446.3987349734. The cubic root of 131020044 is about 507.9012094253.

Adding to 131020044 its reverse (440020131), we get a palindrome (571040175).

The spelling of 131020044 in words is "one hundred thirty-one million, twenty thousand, forty-four".