21320141179 has 2 divisors, whose sum is σ = 21320141180. Its totient is φ = 21320141178.

The previous prime is 21320141113. The next prime is 21320141233. The reversal of 21320141179 is 97114102312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21320141179 - 2¹⁹ = 21319616891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21320141179.

It is not a weakly prime, because it can be changed into another prime (21320141279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10660070589 + 10660070590.

It is an arithmetic number, because the mean of its divisors is an integer number (10660070590).

Almost surely, 2^21320141179 is an apocalyptic number.

21320141179 is a deficient number, since it is larger than the sum of its proper divisors (1).

21320141179 is an equidigital number, since it uses as much as digits as its factorization.

21320141179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 21320141179 in words is "twenty-one billion, three hundred twenty million, one hundred forty-one thousand, one hundred seventy-nine".