213243322200031 has 2 divisors, whose sum is σ = 213243322200032. Its totient is φ = 213243322200030.

The previous prime is 213243322199959. The next prime is 213243322200047. The reversal of 213243322200031 is 130002223342312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213243322200031 is a prime.

It is a super-2 number, since 2×213243322200031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213243322200331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106621661100015 + 106621661100016.

It is an arithmetic number, because the mean of its divisors is an integer number (106621661100016).

Almost surely, 2^{213243322200031} is an apocalyptic number.

213243322200031 is a deficient number, since it is larger than the sum of its proper divisors (1).

213243322200031 is an equidigital number, since it uses as much as digits as its factorization.

213243322200031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 213243322200031 its reverse (130002223342312), we get a palindrome (343245545542343).

The spelling of 213243322200031 in words is "two hundred thirteen trillion, two hundred forty-three billion, three hundred twenty-two million, two hundred thousand, thirty-one".