31263340552320 has 256 divisors, whose sum is σ = 101783606330880. Its totient is φ = 8158591795200.

The previous prime is 31263340552261. The next prime is 31263340552351. The reversal of 31263340552320 is 2325504336213.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1235643670 + ... + 1235668970.

It is an arithmetic number, because the mean of its divisors is an integer number (397592212230).

Almost surely, 2^{31263340552320} is an apocalyptic number.

31263340552320 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 31263340552320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50891803165440).

31263340552320 is an abundant number, since it is smaller than the sum of its proper divisors (70520265778560).

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

31263340552320 is a wasteful number, since it uses less digits than its factorization.

31263340552320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39063 (or 39051 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 39.

Adding to 31263340552320 its reverse (2325504336213), we get a palindrome (33588844888533).

The spelling of 31263340552320 in words is "thirty-one trillion, two hundred sixty-three billion, three hundred forty million, five hundred fifty-two thousand, three hundred twenty".