312130203 has 16 divisors (see below), whose sum is σ = 518866176. Its totient is φ = 162145440.

The previous prime is 312130193. The next prime is 312130207. The reversal of 312130203 is 302031213.

It is not a de Polignac number, because 312130203 - 2⁸ = 312129947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312130207) 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, 675376 + ... + 675837.

It is an arithmetic number, because the mean of its divisors is an integer number (32429136).

Almost surely, 2^312130203 is an apocalyptic number.

312130203 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

312130203 is a deficient number, since it is larger than the sum of its proper divisors (206735973).

312130203 is a wasteful number, since it uses less digits than its factorization.

312130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351234.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 312130203 is about 17667.2069948818. The cubic root of 312130203 is about 678.3366228969.

Adding to 312130203 its reverse (302031213), we get a palindrome (614161416).

The spelling of 312130203 in words is "three hundred twelve million, one hundred thirty thousand, two hundred three".