11775142321 has 8 divisors (see below), whose sum is σ = 12030102144. Its totient is φ = 11520366960.

The previous prime is 11775142279. The next prime is 11775142369. The reversal of 11775142321 is 12324157711.

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 11775142321 - 2⁹ = 11775141809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11775142121) 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, 87051 + ... + 176431.

It is an arithmetic number, because the mean of its divisors is an integer number (1503762768).

Almost surely, 2^11775142321 is an apocalyptic number.

It is an amenable number.

11775142321 is a deficient number, since it is larger than the sum of its proper divisors (254959823).

11775142321 is an equidigital number, since it uses as much as digits as its factorization.

11775142321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92231.

The product of its digits is 11760, while the sum is 34.

The spelling of 11775142321 in words is "eleven billion, seven hundred seventy-five million, one hundred forty-two thousand, three hundred twenty-one".