211341431 has 8 divisors (see below), whose sum is σ = 247150464. Its totient is φ = 176936760.

The previous prime is 211341421. The next prime is 211341439. The reversal of 211341431 is 134143112.

211341431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211341431 - 2¹⁰ = 211340407 is a prime.

It is a super-2 number, since 2×211341431² = 89330400914255522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211341439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350765 + ... + 351366.

It is an arithmetic number, because the mean of its divisors is an integer number (30893808).

Almost surely, 2^211341431 is an apocalyptic number.

211341431 is a deficient number, since it is larger than the sum of its proper divisors (35809033).

211341431 is an equidigital number, since it uses as much as digits as its factorization.

211341431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702181.

The product of its digits is 288, while the sum is 20.

The square root of 211341431 is about 14537.5868355102. The cubic root of 211341431 is about 595.6551228697.

Adding to 211341431 its reverse (134143112), we get a palindrome (345484543).

The spelling of 211341431 in words is "two hundred eleven million, three hundred forty-one thousand, four hundred thirty-one".