1100220311 has 2 divisors, whose sum is σ = 1100220312. Its totient is φ = 1100220310.

The previous prime is 1100220307. The next prime is 1100220323. The reversal of 1100220311 is 1130220011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100220311 - 2² = 1100220307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100220292 and 1100220301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100220301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550110155 + 550110156.

It is an arithmetic number, because the mean of its divisors is an integer number (550110156).

Almost surely, 2^1100220311 is an apocalyptic number.

1100220311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100220311 is an equidigital number, since it uses as much as digits as its factorization.

1100220311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1100220311 is about 33169.5690505620. The cubic root of 1100220311 is about 1032.3490268149.

Adding to 1100220311 its reverse (1130220011), we get a palindrome (2230440322).

It can be divided in two parts, 11002 and 20311, that added together give a palindrome (31313).

The spelling of 1100220311 in words is "one billion, one hundred million, two hundred twenty thousand, three hundred eleven".