21160132423393 has 2 divisors, whose sum is σ = 21160132423394. Its totient is φ = 21160132423392.

The previous prime is 21160132423379. The next prime is 21160132423429. The reversal of 21160132423393 is 39332423106112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11575733749969 + 9584398673424 = 3402313^2 + 3095868^2 .

It is a cyclic number.

It is not a de Polignac number, because 21160132423393 - 2⁵ = 21160132423361 is a prime.

It is not a weakly prime, because it can be changed into another prime (21160132423343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580066211696 + 10580066211697.

It is an arithmetic number, because the mean of its divisors is an integer number (10580066211697).

Almost surely, 2^{21160132423393} is an apocalyptic number.

It is an amenable number.

21160132423393 is a deficient number, since it is larger than the sum of its proper divisors (1).

21160132423393 is an equidigital number, since it uses as much as digits as its factorization.

21160132423393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 21160132423393 in words is "twenty-one trillion, one hundred sixty billion, one hundred thirty-two million, four hundred twenty-three thousand, three hundred ninety-three".