10001323001240 has 64 divisors (see below), whose sum is σ = 23858157636000. Its totient is φ = 3760229910528.

The previous prime is 10001323001179. The next prime is 10001323001273. The reversal of 10001323001240 is 4210032310001.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9199790 + ... + 10229309.

Almost surely, 2^{10001323001240} is an apocalyptic number.

10001323001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001323001240 is an abundant number, since it is smaller than the sum of its proper divisors (13856834634760).

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

10001323001240 is a wasteful number, since it uses less digits than its factorization.

10001323001240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19429884 (or 19429880 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10001323001240 its reverse (4210032310001), we get a palindrome (14211355311241).

The spelling of 10001323001240 in words is "ten trillion, one billion, three hundred twenty-three million, one thousand, two hundred forty".