20312012230 has 16 divisors (see below), whose sum is σ = 36903321360. Its totient is φ = 8048871712.

The previous prime is 20312012213. The next prime is 20312012251. The reversal of 20312012230 is 3221021302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9490525 + ... + 9492664.

It is an arithmetic number, because the mean of its divisors is an integer number (2306457585).

Almost surely, 2^20312012230 is an apocalyptic number.

20312012230 is a deficient number, since it is larger than the sum of its proper divisors (16591309130).

20312012230 is a wasteful number, since it uses less digits than its factorization.

20312012230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18983303.

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

Adding to 20312012230 its reverse (3221021302), we get a palindrome (23533033532).

The spelling of 20312012230 in words is "twenty billion, three hundred twelve million, twelve thousand, two hundred thirty".