1193731273921 has 8 divisors (see below), whose sum is σ = 1219271606784. Its totient is φ = 1168196849280.

The previous prime is 1193731273909. The next prime is 1193731273939. The reversal of 1193731273921 is 1293721373911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1193731273921 - 2⁹ = 1193731273409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1193731273901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067440 + ... + 1878001.

It is an arithmetic number, because the mean of its divisors is an integer number (152408950848).

Almost surely, 2^{1193731273921} is an apocalyptic number.

It is an amenable number.

1193731273921 is a deficient number, since it is larger than the sum of its proper divisors (25540332863).

1193731273921 is an equidigital number, since it uses as much as digits as its factorization.

1193731273921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954111.

The product of its digits is 428652, while the sum is 49.

The spelling of 1193731273921 in words is "one trillion, one hundred ninety-three billion, seven hundred thirty-one million, two hundred seventy-three thousand, nine hundred twenty-one".