1100202311321 has 4 divisors (see below), whose sum is σ = 1100236657152. Its totient is φ = 1100167965492.

The previous prime is 1100202311317. The next prime is 1100202311353. The reversal of 1100202311321 is 1231132020011.

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 1100202311321 - 2² = 1100202311317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100202311321.

It is not an unprimeable number, because it can be changed into a prime (1100202313321) 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, 17124821 + ... + 17188946.

It is an arithmetic number, because the mean of its divisors is an integer number (275059164288).

Almost surely, 2^{1100202311321} is an apocalyptic number.

It is an amenable number.

1100202311321 is a deficient number, since it is larger than the sum of its proper divisors (34345831).

1100202311321 is an equidigital number, since it uses as much as digits as its factorization.

1100202311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34345830.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1100202311321 its reverse (1231132020011), we get a palindrome (2331334331332).

The spelling of 1100202311321 in words is "one trillion, one hundred billion, two hundred two million, three hundred eleven thousand, three hundred twenty-one".