20314231 has 16 divisors (see below), whose sum is σ = 23892480. Its totient is φ = 16912800.

The previous prime is 20314219. The next prime is 20314237. The reversal of 20314231 is 13241302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20314231 - 2¹⁹ = 19789943 is a prime.

It is a super-2 number, since 2×20314231² = 825335962242722, which 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 (20314237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41470 + ... + 41956.

It is an arithmetic number, because the mean of its divisors is an integer number (1493280).

Almost surely, 2^20314231 is an apocalyptic number.

20314231 is a deficient number, since it is larger than the sum of its proper divisors (3578249).

20314231 is a wasteful number, since it uses less digits than its factorization.

20314231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20314231 is about 4507.1311274468. The cubic root of 20314231 is about 272.8559711137.

Adding to 20314231 its reverse (13241302), we get a palindrome (33555533).

The spelling of 20314231 in words is "twenty million, three hundred fourteen thousand, two hundred thirty-one".