131041323420 has 192 divisors, whose sum is σ = 427061376000. Its totient is φ = 29401712640.

The previous prime is 131041323403. The next prime is 131041323443. The reversal of 131041323420 is 24323140131.

It is a happy number.

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, 18854106 + ... + 18861054.

It is an arithmetic number, because the mean of its divisors is an integer number (2224278000).

Almost surely, 2^131041323420 is an apocalyptic number.

131041323420 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 131041323420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213530688000).

131041323420 is an abundant number, since it is smaller than the sum of its proper divisors (296020052580).

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

131041323420 is a wasteful number, since it uses less digits than its factorization.

131041323420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788 (or 7786 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131041323420 its reverse (24323140131), we get a palindrome (155364463551).

The spelling of 131041323420 in words is "one hundred thirty-one billion, forty-one million, three hundred twenty-three thousand, four hundred twenty".