32313112440 has 128 divisors (see below), whose sum is σ = 117304796160. Its totient is φ = 6951389184.

The previous prime is 32313112439. The next prime is 32313112441. The reversal of 32313112440 is 4421131323.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (32313112439) and next prime (32313112441).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 32313112440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32313112441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1117132 + ... + 1145691.

It is an arithmetic number, because the mean of its divisors is an integer number (916443720).

Almost surely, 2^32313112440 is an apocalyptic number.

32313112440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32313112440 is an abundant number, since it is smaller than the sum of its proper divisors (84991683720).

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

32313112440 is a wasteful number, since it uses less digits than its factorization.

32313112440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262861 (or 2262857 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 32313112440 its reverse (4421131323), we get a palindrome (36734243763).

The spelling of 32313112440 in words is "thirty-two billion, three hundred thirteen million, one hundred twelve thousand, four hundred forty".