131043104520 has 256 divisors, whose sum is σ = 416427540480. Its totient is φ = 32939827200.

The previous prime is 131043104501. The next prime is 131043104617. The reversal of 131043104520 is 25401340131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38987640 + ... + 38991000.

It is an arithmetic number, because the mean of its divisors is an integer number (1626670080).

Almost surely, 2^131043104520 is an apocalyptic number.

131043104520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131043104520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208213770240).

131043104520 is an abundant number, since it is smaller than the sum of its proper divisors (285384435960).

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

131043104520 is a wasteful number, since it uses less digits than its factorization.

131043104520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3672 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 131043104520 its reverse (25401340131), we get a palindrome (156444444651).

The spelling of 131043104520 in words is "one hundred thirty-one billion, forty-three million, one hundred four thousand, five hundred twenty".