20140344019 has 2 divisors, whose sum is σ = 20140344020. Its totient is φ = 20140344018.

The previous prime is 20140343987. The next prime is 20140344113. The reversal of 20140344019 is 91044304102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20140344019 - 2⁵ = 20140343987 is a prime.

It is a super-2 number, since 2×20140344019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20140344619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070172009 + 10070172010.

It is an arithmetic number, because the mean of its divisors is an integer number (10070172010).

Almost surely, 2^20140344019 is an apocalyptic number.

20140344019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20140344019 is an equidigital number, since it uses as much as digits as its factorization.

20140344019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 20140344019 in words is "twenty billion, one hundred forty million, three hundred forty-four thousand, nineteen".