1121202020311 has 4 divisors (see below), whose sum is σ = 1121217452872. Its totient is φ = 1121186587752.

The previous prime is 1121202020291. The next prime is 1121202020333. The reversal of 1121202020311 is 1130202021211.

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 1121202020311 - 2¹⁷ = 1121201889239 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 (1121202024311) 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, 7606785 + ... + 7752778.

It is an arithmetic number, because the mean of its divisors is an integer number (280304363218).

Almost surely, 2^{1121202020311} is an apocalyptic number.

1121202020311 is a deficient number, since it is larger than the sum of its proper divisors (15432561).

1121202020311 is an equidigital number, since it uses as much as digits as its factorization.

1121202020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15432560.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1121202020311 its reverse (1130202021211), we get a palindrome (2251404041522).

The spelling of 1121202020311 in words is "one trillion, one hundred twenty-one billion, two hundred two million, twenty thousand, three hundred eleven".