1214143111 has 16 divisors (see below), whose sum is σ = 1360164960. Its totient is φ = 1077027840.

The previous prime is 1214143103. The next prime is 1214143199. The reversal of 1214143111 is 1113414121.

It is a cyclic number.

It is not a de Polignac number, because 1214143111 - 2³ = 1214143103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214143211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54091 + ... + 73171.

It is an arithmetic number, because the mean of its divisors is an integer number (85010310).

Almost surely, 2^1214143111 is an apocalyptic number.

1214143111 is a deficient number, since it is larger than the sum of its proper divisors (146021849).

1214143111 is a wasteful number, since it uses less digits than its factorization.

1214143111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19314.

The product of its digits is 96, while the sum is 19.

The square root of 1214143111 is about 34844.5564041214. The cubic root of 1214143111 is about 1066.8170794509.

Adding to 1214143111 its reverse (1113414121), we get a palindrome (2327557232).

The spelling of 1214143111 in words is "one billion, two hundred fourteen million, one hundred forty-three thousand, one hundred eleven".