10231340040 has 112 divisors (see below), whose sum is σ = 34515081900. Its totient is φ = 2728349568.

The previous prime is 10231339997. The next prime is 10231340059. The reversal of 10231340040 is 4004313201.

It can be written as a sum of positive squares in 2 ways, for example, as 10099044036 + 132296004 = 100494^2 + 11502^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10231339995 and 10231340022.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 146275 + ... + 204594.

Almost surely, 2^10231340040 is an apocalyptic number.

10231340040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10231340040 is an abundant number, since it is smaller than the sum of its proper divisors (24283741860).

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

10231340040 is an equidigital number, since it uses as much as digits as its factorization.

10231340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350898 (or 350879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 10231340040 its reverse (4004313201), we get a palindrome (14235653241).

The spelling of 10231340040 in words is "ten billion, two hundred thirty-one million, three hundred forty thousand, forty".