10031140240 has 80 divisors (see below), whose sum is σ = 25791313536. Its totient is φ = 3597696000.

The previous prime is 10031140219. The next prime is 10031140247. The reversal of 10031140240 is 4204113001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (10031140247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13836 + ... + 142315.

Almost surely, 2^10031140240 is an apocalyptic number.

10031140240 is a gapful number since it is divisible by the number (10) 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 10031140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12895656768).

10031140240 is an abundant number, since it is smaller than the sum of its proper divisors (15760173296).

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

10031140240 is a wasteful number, since it uses less digits than its factorization.

10031140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156248 (or 156242 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10031140240 its reverse (4204113001), we get a palindrome (14235253241).

The spelling of 10031140240 in words is "ten billion, thirty-one million, one hundred forty thousand, two hundred forty".