131110321020 has 192 divisors, whose sum is σ = 439046092800. Its totient is φ = 28583165952.

The previous prime is 131110320967. The next prime is 131110321031. The reversal of 131110321020 is 20123011131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 3390756 + ... + 3429204.

It is an arithmetic number, because the mean of its divisors is an integer number (2286698400).

Almost surely, 2^131110321020 is an apocalyptic number.

131110321020 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 131110321020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219523046400).

131110321020 is an abundant number, since it is smaller than the sum of its proper divisors (307935771780).

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

131110321020 is a wasteful number, since it uses less digits than its factorization.

131110321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38844 (or 38842 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131110321020 its reverse (20123011131), we get a palindrome (151233332151).

The spelling of 131110321020 in words is "one hundred thirty-one billion, one hundred ten million, three hundred twenty-one thousand, twenty".