131403312034340 has 24 divisors (see below), whose sum is σ = 275954333329080. Its totient is φ = 52559919469568.

The previous prime is 131403312034297. The next prime is 131403312034343. The reversal of 131403312034340 is 43430213304131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 80742359104 + 131322569675236 = 284152^2 + 11459606^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131403312034297 and 131403312034306.

It is not an unprimeable number, because it can be changed into a prime (131403312034343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87067127 + ... + 88563486.

It is an arithmetic number, because the mean of its divisors is an integer number (11498097222045).

Almost surely, 2^{131403312034340} is an apocalyptic number.

131403312034340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131403312034340 is an abundant number, since it is smaller than the sum of its proper divisors (144551021294740).

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

131403312034340 is a wasteful number, since it uses less digits than its factorization.

131403312034340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175668031 (or 175668029 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 131403312034340 its reverse (43430213304131), we get a palindrome (174833525338471).

The spelling of 131403312034340 in words is "one hundred thirty-one trillion, four hundred three billion, three hundred twelve million, thirty-four thousand, three hundred forty".