214111431 has 24 divisors (see below), whose sum is σ = 325538304. Its totient is φ = 140599800.

The previous prime is 214111427. The next prime is 214111477. The reversal of 214111431 is 134111412.

It is not a de Polignac number, because 214111431 - 2² = 214111427 is a prime.

It is a super-2 number, since 2×214111431² = 91687409769735522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214111411) 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 in 23 ways as a sum of consecutive naturals, for example, 9706 + ... + 22856.

It is an arithmetic number, because the mean of its divisors is an integer number (13564096).

Almost surely, 2^214111431 is an apocalyptic number.

214111431 is a deficient number, since it is larger than the sum of its proper divisors (111426873).

214111431 is an equidigital number, since it uses as much as digits as its factorization.

214111431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13233 (or 13221 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 214111431 is about 14632.5469758344. The cubic root of 214111431 is about 598.2462036587.

Adding to 214111431 its reverse (134111412), we get a palindrome (348222843).

The spelling of 214111431 in words is "two hundred fourteen million, one hundred eleven thousand, four hundred thirty-one".