31034244320 has 144 divisors (see below), whose sum is σ = 79330149360. Its totient is φ = 11440963584.

The previous prime is 31034244313. The next prime is 31034244407. The reversal of 31034244320 is 2344243013.

It is a self number, because there is not a number n which added to its sum of digits gives 31034244320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4158032 + ... + 4165488.

It is an arithmetic number, because the mean of its divisors is an integer number (550903815).

Almost surely, 2^31034244320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31034244320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39665074680).

31034244320 is an abundant number, since it is smaller than the sum of its proper divisors (48295905040).

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

31034244320 is a wasteful number, since it uses less digits than its factorization.

31034244320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7565 (or 7520 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31034244320 its reverse (2344243013), we get a palindrome (33378487333).

The spelling of 31034244320 in words is "thirty-one billion, thirty-four million, two hundred forty-four thousand, three hundred twenty".