11143031214 has 32 divisors (see below), whose sum is σ = 26577169920. Its totient is φ = 3045300192.

The previous prime is 11143031203. The next prime is 11143031227. The reversal of 11143031214 is 41213034111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5766649 + ... + 5768580.

It is an arithmetic number, because the mean of its divisors is an integer number (830536560).

Almost surely, 2^11143031214 is an apocalyptic number.

11143031214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11143031214 is an abundant number, since it is smaller than the sum of its proper divisors (15434138706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11143031214 is a wasteful number, since it uses less digits than its factorization.

11143031214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11535264.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11143031214 its reverse (41213034111), we get a palindrome (52356065325).

The spelling of 11143031214 in words is "eleven billion, one hundred forty-three million, thirty-one thousand, two hundred fourteen".