20131422019 has 4 divisors (see below), whose sum is σ = 20675514544. Its totient is φ = 19587329496.

The previous prime is 20131422007. The next prime is 20131422071. The reversal of 20131422019 is 91022413102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20131422019 - 2¹⁵ = 20131389251 is a prime.

It is a super-2 number, since 2×20131422019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20131421984 and 20131422002.

It is not an unprimeable number, because it can be changed into a prime (20131422719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272046207 + ... + 272046280.

It is an arithmetic number, because the mean of its divisors is an integer number (5168878636).

Almost surely, 2^20131422019 is an apocalyptic number.

20131422019 is a deficient number, since it is larger than the sum of its proper divisors (544092525).

20131422019 is an equidigital number, since it uses as much as digits as its factorization.

20131422019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544092524.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 20131422019 in words is "twenty billion, one hundred thirty-one million, four hundred twenty-two thousand, nineteen".