10311040240 has 20 divisors (see below), whose sum is σ = 23973168744. Its totient is φ = 4124416064.

The previous prime is 10311040217. The next prime is 10311040253. The reversal of 10311040240 is 4204011301.

It is a tau number, because it is divible by the number of its divisors (20).

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

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 3 ways as a sum of consecutive naturals, for example, 64443922 + ... + 64444081.

Almost surely, 2^10311040240 is an apocalyptic number.

10311040240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10311040240 is an abundant number, since it is smaller than the sum of its proper divisors (13662128504).

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

10311040240 is a wasteful number, since it uses less digits than its factorization.

10311040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128888016 (or 128888010 counting only the distinct ones).

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

Adding to 10311040240 its reverse (4204011301), we get a palindrome (14515051541).

The spelling of 10311040240 in words is "ten billion, three hundred eleven million, forty thousand, two hundred forty".