11213202021361 has 2 divisors, whose sum is σ = 11213202021362. Its totient is φ = 11213202021360.

The previous prime is 11213202021319. The next prime is 11213202021449. The reversal of 11213202021361 is 16312020231211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7088139470736 + 4125062550625 = 2662356^2 + 2031025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11213202021361 is a prime.

It is not a weakly prime, because it can be changed into another prime (11213202021961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606601010680 + 5606601010681.

It is an arithmetic number, because the mean of its divisors is an integer number (5606601010681).

Almost surely, 2^{11213202021361} is an apocalyptic number.

It is an amenable number.

11213202021361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213202021361 is an equidigital number, since it uses as much as digits as its factorization.

11213202021361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 11213202021361 its reverse (16312020231211), we get a palindrome (27525222252572).

The spelling of 11213202021361 in words is "eleven trillion, two hundred thirteen billion, two hundred two million, twenty-one thousand, three hundred sixty-one".