19979996803141 has 2 divisors, whose sum is σ = 19979996803142. Its totient is φ = 19979996803140.

The previous prime is 19979996803133. The next prime is 19979996803201. The reversal of 19979996803141 is 14130869997991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15204766650241 + 4775230152900 = 3899329^2 + 2185230^2 .

It is a cyclic number.

It is not a de Polignac number, because 19979996803141 - 2³ = 19979996803133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19979996803541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9989998401570 + 9989998401571.

It is an arithmetic number, because the mean of its divisors is an integer number (9989998401571).

Almost surely, 2^{19979996803141} is an apocalyptic number.

It is an amenable number.

19979996803141 is a deficient number, since it is larger than the sum of its proper divisors (1).

19979996803141 is an equidigital number, since it uses as much as digits as its factorization.

19979996803141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238085568, while the sum is 76.

The spelling of 19979996803141 in words is "nineteen trillion, nine hundred seventy-nine billion, nine hundred ninety-six million, eight hundred three thousand, one hundred forty-one".