20340120019 has 2 divisors, whose sum is σ = 20340120020. Its totient is φ = 20340120018.

The previous prime is 20340119981. The next prime is 20340120041. The reversal of 20340120019 is 91002104302.

It is an a-pointer prime, because the next prime (20340120041) can be obtained adding 20340120019 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20340120019 - 2²⁷ = 20205902291 is a prime.

It is a super-2 number, since 2×20340120019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20340120319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10170060009 + 10170060010.

It is an arithmetic number, because the mean of its divisors is an integer number (10170060010).

Almost surely, 2^20340120019 is an apocalyptic number.

20340120019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20340120019 is an equidigital number, since it uses as much as digits as its factorization.

20340120019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 20340120019 in words is "twenty billion, three hundred forty million, one hundred twenty thousand, nineteen".