212431444033 has 2 divisors, whose sum is σ = 212431444034. Its totient is φ = 212431444032.

The previous prime is 212431444031. The next prime is 212431444051. The reversal of 212431444033 is 330444134212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184412701489 + 28018742544 = 429433^2 + 167388^2 .

It is a cyclic number.

It is not a de Polignac number, because 212431444033 - 2¹ = 212431444031 is a prime.

It is a super-2 number, since 2×212431444033² (a number of 23 digits) contains 22 as substring.

Together with 212431444031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 212431443986 and 212431444004.

It is not a weakly prime, because it can be changed into another prime (212431444031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106215722016 + 106215722017.

It is an arithmetic number, because the mean of its divisors is an integer number (106215722017).

Almost surely, 2^212431444033 is an apocalyptic number.

It is an amenable number.

212431444033 is a deficient number, since it is larger than the sum of its proper divisors (1).

212431444033 is an equidigital number, since it uses as much as digits as its factorization.

212431444033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 212431444033 its reverse (330444134212), we get a palindrome (542875578245).

The spelling of 212431444033 in words is "two hundred twelve billion, four hundred thirty-one million, four hundred forty-four thousand, thirty-three".