31314230340 has 96 divisors (see below), whose sum is σ = 89649262080. Its totient is φ = 8163311616.

The previous prime is 31314230329. The next prime is 31314230357. The reversal of 31314230340 is 4303241313.

It is a self number, because there is not a number n which added to its sum of digits gives 31314230340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2613804 + ... + 2625756.

It is an arithmetic number, because the mean of its divisors is an integer number (933846480).

Almost surely, 2^31314230340 is an apocalyptic number.

31314230340 is a gapful number since it is divisible by the number (30) 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 31314230340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44824631040).

31314230340 is an abundant number, since it is smaller than the sum of its proper divisors (58335031740).

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

31314230340 is a wasteful number, since it uses less digits than its factorization.

31314230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12941 (or 12939 counting only the distinct ones).

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

Adding to 31314230340 its reverse (4303241313), we get a palindrome (35617471653).

The spelling of 31314230340 in words is "thirty-one billion, three hundred fourteen million, two hundred thirty thousand, three hundred forty".