9121329307 has 6 divisors (see below), whose sum is σ = 9129985764. Its totient is φ = 9112680720.

The previous prime is 9121329293. The next prime is 9121329359. The reversal of 9121329307 is 7039231219.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-9121329307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9121329367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1742428 + ... + 1747654.

It is an arithmetic number, because the mean of its divisors is an integer number (1521664294).

Almost surely, 2^9121329307 is an apocalyptic number.

9121329307 is a deficient number, since it is larger than the sum of its proper divisors (8656457).

9121329307 is an frugal number, since it uses more digits than its factorization.

9121329307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7869 (or 6548 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 9121329307 is about 95505.6506548173. The cubic root of 9121329307 is about 2089.3893583976.

The spelling of 9121329307 in words is "nine billion, one hundred twenty-one million, three hundred twenty-nine thousand, three hundred seven".