19723030301 has 16 divisors (see below), whose sum is σ = 23097446064. Its totient is φ = 16671826944.

The previous prime is 19723030253. The next prime is 19723030343. The reversal of 19723030301 is 10303032791.

It can be written as a sum of positive squares in 8 ways, for example, as 1308268900 + 18414761401 = 36170^2 + 135701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19723030301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19723030381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197830 + ... + 1214183.

It is an arithmetic number, because the mean of its divisors is an integer number (1443590379).

Almost surely, 2^19723030301 is an apocalyptic number.

It is an amenable number.

19723030301 is a deficient number, since it is larger than the sum of its proper divisors (3374415763).

19723030301 is a wasteful number, since it uses less digits than its factorization.

19723030301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412080.

The product of its (nonzero) digits is 3402, while the sum is 29.

The spelling of 19723030301 in words is "nineteen billion, seven hundred twenty-three million, thirty thousand, three hundred one".