20000019373 has 2 divisors, whose sum is σ = 20000019374. Its totient is φ = 20000019372.

The previous prime is 20000019349. The next prime is 20000019409. The reversal of 20000019373 is 37391000002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10868688009 + 9131331364 = 104253^2 + 95558^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000019373 - 2¹⁷ = 19999888301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000019773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000009686 + 10000009687.

It is an arithmetic number, because the mean of its divisors is an integer number (10000009687).

Almost surely, 2^20000019373 is an apocalyptic number.

It is an amenable number.

20000019373 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000019373 is an equidigital number, since it uses as much as digits as its factorization.

20000019373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

Adding to 20000019373 its reverse (37391000002), we get a palindrome (57391019375).

The spelling of 20000019373 in words is "twenty billion, nineteen thousand, three hundred seventy-three".