20314417531 has 4 divisors (see below), whose sum is σ = 20426652064. Its totient is φ = 20202183000.

The previous prime is 20314417493. The next prime is 20314417609. The reversal of 20314417531 is 13571441302.

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 20314417531 - 2¹¹ = 20314415483 is a prime.

It is a super-2 number, since 2×20314417531² (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 = 20314417493 and 20314417502.

It is not an unprimeable number, because it can be changed into a prime (20314427531) 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, 56116995 + ... + 56117356.

It is an arithmetic number, because the mean of its divisors is an integer number (5106663016).

Almost surely, 2^20314417531 is an apocalyptic number.

20314417531 is a deficient number, since it is larger than the sum of its proper divisors (112234533).

20314417531 is a wasteful number, since it uses less digits than its factorization.

20314417531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112234532.

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 20314417531 its reverse (13571441302), we get a palindrome (33885858833).

The spelling of 20314417531 in words is "twenty billion, three hundred fourteen million, four hundred seventeen thousand, five hundred thirty-one".