11673041921 has 2 divisors, whose sum is σ = 11673041922. Its totient is φ = 11673041920.

The previous prime is 11673041879. The next prime is 11673042013. The reversal of 11673041921 is 12914037611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11089143025 + 583898896 = 105305^2 + 24164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11673041921 is a prime.

It is not a weakly prime, because it can be changed into another prime (11673041221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5836520960 + 5836520961.

It is an arithmetic number, because the mean of its divisors is an integer number (5836520961).

Almost surely, 2^11673041921 is an apocalyptic number.

It is an amenable number.

11673041921 is a deficient number, since it is larger than the sum of its proper divisors (1).

11673041921 is an equidigital number, since it uses as much as digits as its factorization.

11673041921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 11673041921 in words is "eleven billion, six hundred seventy-three million, forty-one thousand, nine hundred twenty-one".