1101343140221 has 4 divisors (see below), whose sum is σ = 1102023403200. Its totient is φ = 1100662877244.

The previous prime is 1101343140179. The next prime is 1101343140269. The reversal of 1101343140221 is 1220413431011.

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 a de Polignac number, because none of the positive numbers 2^k-1101343140221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101343143221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340129061 + ... + 340132298.

It is an arithmetic number, because the mean of its divisors is an integer number (275505850800).

Almost surely, 2^{1101343140221} is an apocalyptic number.

It is an amenable number.

1101343140221 is a deficient number, since it is larger than the sum of its proper divisors (680262979).

1101343140221 is an equidigital number, since it uses as much as digits as its factorization.

1101343140221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680262978.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1101343140221 its reverse (1220413431011), we get a palindrome (2321756571232).

The spelling of 1101343140221 in words is "one trillion, one hundred one billion, three hundred forty-three million, one hundred forty thousand, two hundred twenty-one".