131332340040 has 384 divisors, whose sum is σ = 444461230080. Its totient is φ = 31009904640.

The previous prime is 131332340033. The next prime is 131332340047. The reversal of 131332340040 is 40043233131.

It is an interprime number because it is at equal distance from previous prime (131332340033) and next prime (131332340047).

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

It is not an unprimeable number, because it can be changed into a prime (131332340047) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 120820377 + ... + 120821463.

It is an arithmetic number, because the mean of its divisors is an integer number (1157451120).

Almost surely, 2^131332340040 is an apocalyptic number.

131332340040 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 131332340040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222230615040).

131332340040 is an abundant number, since it is smaller than the sum of its proper divisors (313128890040).

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

131332340040 is a wasteful number, since it uses less digits than its factorization.

131332340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 131332340040 its reverse (40043233131), we get a palindrome (171375573171).

The spelling of 131332340040 in words is "one hundred thirty-one billion, three hundred thirty-two million, three hundred forty thousand, forty".