32313312120 has 128 divisors (see below), whose sum is σ = 99662192640. Its totient is φ = 8375385600.

The previous prime is 32313312107. The next prime is 32313312121. The reversal of 32313312120 is 2121331323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32313312121) 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, 5107279 + ... + 5113601.

It is an arithmetic number, because the mean of its divisors is an integer number (778610880).

Almost surely, 2^32313312120 is an apocalyptic number.

32313312120 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 32313312120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49831096320).

32313312120 is an abundant number, since it is smaller than the sum of its proper divisors (67348880520).

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

32313312120 is a wasteful number, since it uses less digits than its factorization.

32313312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7525 (or 7521 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 32313312120 its reverse (2121331323), we get a palindrome (34434643443).

The spelling of 32313312120 in words is "thirty-two billion, three hundred thirteen million, three hundred twelve thousand, one hundred twenty".