31124350740 has 192 divisors, whose sum is σ = 100590336000. Its totient is φ = 7043587584.

The previous prime is 31124350723. The next prime is 31124350769. The reversal of 31124350740 is 4705342113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 31124350698 and 31124350707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26220427 + ... + 26221613.

It is an arithmetic number, because the mean of its divisors is an integer number (523908000).

Almost surely, 2^31124350740 is an apocalyptic number.

31124350740 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 31124350740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50295168000).

31124350740 is an abundant number, since it is smaller than the sum of its proper divisors (69465985260).

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

31124350740 is a wasteful number, since it uses less digits than its factorization.

31124350740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1772 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 31124350740 its reverse (4705342113), we get a palindrome (35829692853).

The spelling of 31124350740 in words is "thirty-one billion, one hundred twenty-four million, three hundred fifty thousand, seven hundred forty".