19601520241 has 2 divisors, whose sum is σ = 19601520242. Its totient is φ = 19601520240.

The previous prime is 19601520109. The next prime is 19601520271. The reversal of 19601520241 is 14202510691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17248882225 + 2352638016 = 131335^2 + 48504^2 .

It is a cyclic number.

It is not a de Polignac number, because 19601520241 - 2¹¹ = 19601518193 is a prime.

It is not a weakly prime, because it can be changed into another prime (19601520271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9800760120 + 9800760121.

It is an arithmetic number, because the mean of its divisors is an integer number (9800760121).

Almost surely, 2^19601520241 is an apocalyptic number.

It is an amenable number.

19601520241 is a deficient number, since it is larger than the sum of its proper divisors (1).

19601520241 is an equidigital number, since it uses as much as digits as its factorization.

19601520241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 19601520241 in words is "nineteen billion, six hundred one million, five hundred twenty thousand, two hundred forty-one".