1101343240321 has 4 divisors (see below), whose sum is σ = 1103642496000. Its totient is φ = 1099043984644.

The previous prime is 1101343240303. The next prime is 1101343240343. The reversal of 1101343240321 is 1230423431011.

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.

It is a cyclic number.

It is not a de Polignac number, because 1101343240321 - 2⁵ = 1101343240289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101343240121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149627121 + ... + 1149628078.

It is an arithmetic number, because the mean of its divisors is an integer number (275910624000).

Almost surely, 2^{1101343240321} is an apocalyptic number.

It is an amenable number.

1101343240321 is a deficient number, since it is larger than the sum of its proper divisors (2299255679).

1101343240321 is an equidigital number, since it uses as much as digits as its factorization.

1101343240321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299255678.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1101343240321 its reverse (1230423431011), we get a palindrome (2331766671332).

The spelling of 1101343240321 in words is "one trillion, one hundred one billion, three hundred forty-three million, two hundred forty thousand, three hundred twenty-one".