212113303361 has 2 divisors, whose sum is σ = 212113303362. Its totient is φ = 212113303360.

The previous prime is 212113303321. The next prime is 212113303373. The reversal of 212113303361 is 163303311212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156296878336 + 55816425025 = 395344^2 + 236255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212113303361 is a prime.

It is a super-2 number, since 2×212113303361² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212113303361.

It is not a weakly prime, because it can be changed into another prime (212113303321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056651680 + 106056651681.

It is an arithmetic number, because the mean of its divisors is an integer number (106056651681).

Almost surely, 2^212113303361 is an apocalyptic number.

It is an amenable number.

212113303361 is a deficient number, since it is larger than the sum of its proper divisors (1).

212113303361 is an equidigital number, since it uses as much as digits as its factorization.

212113303361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 212113303361 its reverse (163303311212), we get a palindrome (375416614573).

The spelling of 212113303361 in words is "two hundred twelve billion, one hundred thirteen million, three hundred three thousand, three hundred sixty-one".