131203340 has 24 divisors (see below), whose sum is σ = 276420480. Its totient is φ = 52311168.

The previous prime is 131203333. The next prime is 131203361. The reversal of 131203340 is 43302131.

It is a happy number.

131203340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4220 + ... + 16739.

It is an arithmetic number, because the mean of its divisors is an integer number (11517520).

Almost surely, 2^131203340 is an apocalyptic number.

131203340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131203340 is an abundant number, since it is smaller than the sum of its proper divisors (145217140).

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

131203340 is a wasteful number, since it uses less digits than its factorization.

131203340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21281 (or 21279 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 131203340 is about 11454.4026470174. The cubic root of 131203340 is about 508.1379489788.

Adding to 131203340 its reverse (43302131), we get a palindrome (174505471).

The spelling of 131203340 in words is "one hundred thirty-one million, two hundred three thousand, three hundred forty".