9121329403 has 2 divisors, whose sum is σ = 9121329404. Its totient is φ = 9121329402.

The previous prime is 9121329401. The next prime is 9121329421. The reversal of 9121329403 is 3049231219.

It is a weak prime.

It is an emirp because it is prime and its reverse (3049231219) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9121329403 - 2¹ = 9121329401 is a prime.

Together with 9121329401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9121329401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4560664701 + 4560664702.

It is an arithmetic number, because the mean of its divisors is an integer number (4560664702).

Almost surely, 2^9121329403 is an apocalyptic number.

9121329403 is a deficient number, since it is larger than the sum of its proper divisors (1).

9121329403 is an equidigital number, since it uses as much as digits as its factorization.

9121329403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 9121329403 is about 95505.6511574053. The cubic root of 9121329403 is about 2089.3893657278.

The spelling of 9121329403 in words is "nine billion, one hundred twenty-one million, three hundred twenty-nine thousand, four hundred three".