1121200302311 has 4 divisors (see below), whose sum is σ = 1121202792192. Its totient is φ = 1121197812432.

The previous prime is 1121200302259. The next prime is 1121200302331. The reversal of 1121200302311 is 1132030021211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121200302311 - 2²⁶ = 1121133193447 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 1121200302311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121200302331) 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, 359630 + ... + 1540043.

It is an arithmetic number, because the mean of its divisors is an integer number (280300698048).

Almost surely, 2^{1121200302311} is an apocalyptic number.

1121200302311 is a deficient number, since it is larger than the sum of its proper divisors (2489881).

1121200302311 is an equidigital number, since it uses as much as digits as its factorization.

1121200302311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489880.

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

Adding to 1121200302311 its reverse (1132030021211), we get a palindrome (2253230323522).

The spelling of 1121200302311 in words is "one trillion, one hundred twenty-one billion, two hundred million, three hundred two thousand, three hundred eleven".