213443124031 has 2 divisors, whose sum is σ = 213443124032. Its totient is φ = 213443124030.

The previous prime is 213443124019. The next prime is 213443124119. The reversal of 213443124031 is 130421344312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213443124031 - 2¹⁵ = 213443091263 is a prime.

It is a super-2 number, since 2×213443124031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213443124131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106721562015 + 106721562016.

It is an arithmetic number, because the mean of its divisors is an integer number (106721562016).

Almost surely, 2^213443124031 is an apocalyptic number.

213443124031 is a deficient number, since it is larger than the sum of its proper divisors (1).

213443124031 is an equidigital number, since it uses as much as digits as its factorization.

213443124031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 213443124031 its reverse (130421344312), we get a palindrome (343864468343).

The spelling of 213443124031 in words is "two hundred thirteen billion, four hundred forty-three million, one hundred twenty-four thousand, thirty-one".