131314421340 has 36 divisors (see below), whose sum is σ = 398320411944. Its totient is φ = 35017178976.

The previous prime is 131314421333. The next prime is 131314421417. The reversal of 131314421340 is 43124413131.

131314421340 is a `hidden beast` number, since 1 + 3 + 1 + 314 + 4 + 2 + 1 + 340 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364762102 + ... + 364762461.

Almost surely, 2^131314421340 is an apocalyptic number.

131314421340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131314421340 is an abundant number, since it is smaller than the sum of its proper divisors (267005990604).

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

131314421340 is a wasteful number, since it uses less digits than its factorization.

131314421340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729524578 (or 729524573 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131314421340 its reverse (43124413131), we get a palindrome (174438834471).

The spelling of 131314421340 in words is "one hundred thirty-one billion, three hundred fourteen million, four hundred twenty-one thousand, three hundred forty".