31120342044000 has 384 divisors, whose sum is σ = 111964947494400. Its totient is φ = 7493687552000.

The previous prime is 31120342043977. The next prime is 31120342044007. The reversal of 31120342044000 is 44024302113.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120342044007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18876859 + ... + 20459141.

It is an arithmetic number, because the mean of its divisors is an integer number (291575384100).

Almost surely, 2^{31120342044000} is an apocalyptic number.

31120342044000 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 31120342044000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55982473747200).

31120342044000 is an abundant number, since it is smaller than the sum of its proper divisors (80844605450400).

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

31120342044000 is a wasteful number, since it uses less digits than its factorization.

31120342044000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582471 (or 1582453 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31120342044000 its reverse (44024302113), we get a palindrome (31164366346113).

The spelling of 31120342044000 in words is "thirty-one trillion, one hundred twenty billion, three hundred forty-two million, forty-four thousand".