20440523119 has 4 divisors (see below), whose sum is σ = 20446608160. Its totient is φ = 20434438080.

The previous prime is 20440523113. The next prime is 20440523137. The reversal of 20440523119 is 91132504402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20440523119 is a prime.

It is a super-2 number, since 2×20440523119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440523113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037479 + ... + 3044200.

It is an arithmetic number, because the mean of its divisors is an integer number (5111652040).

Almost surely, 2^20440523119 is an apocalyptic number.

20440523119 is a deficient number, since it is larger than the sum of its proper divisors (6085041).

20440523119 is an equidigital number, since it uses as much as digits as its factorization.

20440523119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6085040.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 20440523119 in words is "twenty billion, four hundred forty million, five hundred twenty-three thousand, one hundred nineteen".