212344131 has 4 divisors (see below), whose sum is σ = 283125512. Its totient is φ = 141562752.

The previous prime is 212344103. The next prime is 212344151. The reversal of 212344131 is 131443212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212344131 - 2¹⁷ = 212213059 is a prime.

It is a super-2 number, since 2×212344131² = 90180059940290322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212344098 and 212344107.

It is not an unprimeable number, because it can be changed into a prime (212344151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35390686 + ... + 35390691.

It is an arithmetic number, because the mean of its divisors is an integer number (70781378).

Almost surely, 2^212344131 is an apocalyptic number.

212344131 is a deficient number, since it is larger than the sum of its proper divisors (70781381).

212344131 is an equidigital number, since it uses as much as digits as its factorization.

212344131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70781380.

The product of its digits is 576, while the sum is 21.

The square root of 212344131 is about 14572.0324937875. The cubic root of 212344131 is about 596.5956567214.

Adding to 212344131 its reverse (131443212), we get a palindrome (343787343).

The spelling of 212344131 in words is "two hundred twelve million, three hundred forty-four thousand, one hundred thirty-one".