201431310340 has 48 divisors (see below), whose sum is σ = 455577470208. Its totient is φ = 74369280384.

The previous prime is 201431310307. The next prime is 201431310341. The reversal of 201431310340 is 43013134102.

It is not an unprimeable number, because it can be changed into a prime (201431310341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6730249 + ... + 6760111.

It is an arithmetic number, because the mean of its divisors is an integer number (9491197296).

Almost surely, 2^201431310340 is an apocalyptic number.

201431310340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201431310340 is an abundant number, since it is smaller than the sum of its proper divisors (254146159868).

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

201431310340 is a wasteful number, since it uses less digits than its factorization.

201431310340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55828 (or 55826 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 201431310340 its reverse (43013134102), we get a palindrome (244444444442).

The spelling of 201431310340 in words is "two hundred one billion, four hundred thirty-one million, three hundred ten thousand, three hundred forty".