312130232 has 8 divisors (see below), whose sum is σ = 585244200. Its totient is φ = 156065112.

The previous prime is 312130223. The next prime is 312130283. The reversal of 312130232 is 232031213.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 312130232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19508132 + ... + 19508147.

It is an arithmetic number, because the mean of its divisors is an integer number (73155525).

Almost surely, 2^312130232 is an apocalyptic number.

It is an amenable number.

312130232 is a deficient number, since it is larger than the sum of its proper divisors (273113968).

312130232 is a wasteful number, since it uses less digits than its factorization.

312130232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39016285 (or 39016281 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 312130232 is about 17667.2078156114. The cubic root of 312130232 is about 678.3366439050.

Adding to 312130232 its reverse (232031213), we get a palindrome (544161445).

The spelling of 312130232 in words is "three hundred twelve million, one hundred thirty thousand, two hundred thirty-two".