1122020311 has 8 divisors (see below), whose sum is σ = 1136427264. Its totient is φ = 1107634680.

The previous prime is 1122020239. The next prime is 1122020323. The reversal of 1122020311 is 1130202211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122020311 - 2⁹ = 1122019799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122020291 and 1122020300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122021311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118876 + ... + 127966.

It is an arithmetic number, because the mean of its divisors is an integer number (142053408).

Almost surely, 2^1122020311 is an apocalyptic number.

1122020311 is a deficient number, since it is larger than the sum of its proper divisors (14406953).

1122020311 is an equidigital number, since it uses as much as digits as its factorization.

1122020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10661.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1122020311 is about 33496.5716305415. The cubic root of 1122020311 is about 1039.1228770091.

Adding to 1122020311 its reverse (1130202211), we get a palindrome (2252222522).

The spelling of 1122020311 in words is "one billion, one hundred twenty-two million, twenty thousand, three hundred eleven".