13223301178961 has 2 divisors, whose sum is σ = 13223301178962. Its totient is φ = 13223301178960.

The previous prime is 13223301178937. The next prime is 13223301179021. The reversal of 13223301178961 is 16987110332231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12971378496400 + 251922682561 = 3601580^2 + 501919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13223301178961 is a prime.

It is a super-2 number, since 2×13223301178961² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13223301138961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611650589480 + 6611650589481.

It is an arithmetic number, because the mean of its divisors is an integer number (6611650589481).

Almost surely, 2^{13223301178961} is an apocalyptic number.

It is an amenable number.

13223301178961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223301178961 is an equidigital number, since it uses as much as digits as its factorization.

13223301178961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 13223301178961 in words is "thirteen trillion, two hundred twenty-three billion, three hundred one million, one hundred seventy-eight thousand, nine hundred sixty-one".