11773603321 has 4 divisors (see below), whose sum is σ = 11805684352. Its totient is φ = 11741522292.

The previous prime is 11773603319. The next prime is 11773603339. The reversal of 11773603321 is 12330637711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12330637711 = 7 ⋅1761519673.

It is a cyclic number.

It is not a de Polignac number, because 11773603321 - 2¹ = 11773603319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11773603921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16039965 + ... + 16040698.

It is an arithmetic number, because the mean of its divisors is an integer number (2951421088).

Almost surely, 2^11773603321 is an apocalyptic number.

It is an amenable number.

11773603321 is a deficient number, since it is larger than the sum of its proper divisors (32081031).

11773603321 is an equidigital number, since it uses as much as digits as its factorization.

11773603321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32081030.

The product of its (nonzero) digits is 15876, while the sum is 34.

The spelling of 11773603321 in words is "eleven billion, seven hundred seventy-three million, six hundred three thousand, three hundred twenty-one".