20312127 has 56 divisors (see below), whose sum is σ = 35413200. Its totient is φ = 11508480.

The previous prime is 20312113. The next prime is 20312137. The reversal of 20312127 is 72121302.

It is not a de Polignac number, because 20312127 - 2⁴ = 20312111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312137) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 136249 + ... + 136397.

Almost surely, 2^20312127 is an apocalyptic number.

20312127 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20312127 is a deficient number, since it is larger than the sum of its proper divisors (15101073).

20312127 is a wasteful number, since it uses less digits than its factorization.

20312127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 20312127 is about 4506.8977135054. The cubic root of 20312127 is about 272.8465506441.

Adding to 20312127 its reverse (72121302), we get a palindrome (92433429).

The spelling of 20312127 in words is "twenty million, three hundred twelve thousand, one hundred twenty-seven".