20312102 has 8 divisors (see below), whose sum is σ = 32071800. Its totient is φ = 9621504.

The previous prime is 20312077. The next prime is 20312111. The reversal of 20312102 is 20121302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267227 + ... + 267302.

It is an arithmetic number, because the mean of its divisors is an integer number (4008975).

Almost surely, 2^20312102 is an apocalyptic number.

20312102 is a deficient number, since it is larger than the sum of its proper divisors (11759698).

20312102 is a wasteful number, since it uses less digits than its factorization.

20312102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534550.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20312102 is about 4506.8949399781. The cubic root of 20312102 is about 272.8464387050.

Adding to 20312102 its reverse (20121302), we get a palindrome (40433404).

The spelling of 20312102 in words is "twenty million, three hundred twelve thousand, one hundred two".