11621206562353 has 2 divisors, whose sum is σ = 11621206562354. Its totient is φ = 11621206562352.

The previous prime is 11621206562321. The next prime is 11621206562501. The reversal of 11621206562353 is 35326560212611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7840095200289 + 3781111362064 = 2800017^2 + 1944508^2 .

It is a cyclic number.

It is not a de Polignac number, because 11621206562353 - 2⁵ = 11621206562321 is a prime.

It is not a weakly prime, because it can be changed into another prime (11621206563353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810603281176 + 5810603281177.

It is an arithmetic number, because the mean of its divisors is an integer number (5810603281177).

Almost surely, 2^{11621206562353} is an apocalyptic number.

It is an amenable number.

11621206562353 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621206562353 is an equidigital number, since it uses as much as digits as its factorization.

11621206562353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 43.

Adding to 11621206562353 its reverse (35326560212611), we get a palindrome (46947766774964).

The spelling of 11621206562353 in words is "eleven trillion, six hundred twenty-one billion, two hundred six million, five hundred sixty-two thousand, three hundred fifty-three".