1211123314 has 16 divisors (see below), whose sum is σ = 1877331456. Its totient is φ = 585998580.

The previous prime is 1211123269. The next prime is 1211123323. The reversal of 1211123314 is 4133211121.

It is a junction number, because it is equal to n+sod(n) for n = 1211123291 and 1211123300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49419 + ... + 69745.

It is an arithmetic number, because the mean of its divisors is an integer number (117333216).

Almost surely, 2^1211123314 is an apocalyptic number.

1211123314 is a deficient number, since it is larger than the sum of its proper divisors (666208142).

1211123314 is an frugal number, since it uses more digits than its factorization.

1211123314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20422 (or 20360 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 1211123314 is about 34801.1970196429. The cubic root of 1211123314 is about 1065.9318884705.

Adding to 1211123314 its reverse (4133211121), we get a palindrome (5344334435).

The spelling of 1211123314 in words is "one billion, two hundred eleven million, one hundred twenty-three thousand, three hundred fourteen".