312130020210 has 64 divisors (see below), whose sum is σ = 759195296640. Its totient is φ = 82121661440.

The previous prime is 312130020187. The next prime is 312130020217. The reversal of 312130020210 is 12020031213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 312130020210.

It is not an unprimeable number, because it can be changed into a prime (312130020217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450346 + ... + 909434.

It is an arithmetic number, because the mean of its divisors is an integer number (11862426510).

Almost surely, 2^312130020210 is an apocalyptic number.

312130020210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312130020210 is an abundant number, since it is smaller than the sum of its proper divisors (447065276430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312130020210 is a wasteful number, since it uses less digits than its factorization.

312130020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459403.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 312130020210 its reverse (12020031213), we get a palindrome (324150051423).

The spelling of 312130020210 in words is "three hundred twelve billion, one hundred thirty million, twenty thousand, two hundred ten".