19319731201 has 2 divisors, whose sum is σ = 19319731202. Its totient is φ = 19319731200.

The previous prime is 19319731187. The next prime is 19319731213. The reversal of 19319731201 is 10213791391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18827956225 + 491774976 = 137215^2 + 22176^2 .

It is a cyclic number.

It is not a de Polignac number, because 19319731201 - 2⁵ = 19319731169 is a prime.

It is a super-3 number, since 3×19319731201³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (19319731901) 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, 9659865600 + 9659865601.

It is an arithmetic number, because the mean of its divisors is an integer number (9659865601).

Almost surely, 2^19319731201 is an apocalyptic number.

It is an amenable number.

19319731201 is a deficient number, since it is larger than the sum of its proper divisors (1).

19319731201 is an equidigital number, since it uses as much as digits as its factorization.

19319731201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The spelling of 19319731201 in words is "nineteen billion, three hundred nineteen million, seven hundred thirty-one thousand, two hundred one".