9121313040 has 80 divisors (see below), whose sum is σ = 32315515008. Its totient is φ = 2084871168.

The previous prime is 9121313017. The next prime is 9121313051. The reversal of 9121313040 is 403131219.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 9121313040.

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, 2712997 + ... + 2716356.

Almost surely, 2^9121313040 is an apocalyptic number.

It is an amenable number.

9121313040 is an abundant number, since it is smaller than the sum of its proper divisors (23194201968).

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

9121313040 is a wasteful number, since it uses less digits than its factorization.

9121313040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429376 (or 5429370 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 9121313040 is about 95505.5654922790. The cubic root of 9121313040 is about 2089.3881163230.

Adding to 9121313040 its reverse (403131219), we get a palindrome (9524444259).

The spelling of 9121313040 in words is "nine billion, one hundred twenty-one million, three hundred thirteen thousand, forty".