312130322 has 16 divisors (see below), whose sum is σ = 536978112. Its totient is φ = 133295760.

The previous prime is 312130283. The next prime is 312130327. The reversal of 312130322 is 223031213.

It is a self number, because there is not a number n which added to its sum of digits gives 312130322.

It is not an unprimeable number, because it can be changed into a prime (312130327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35429 + ... + 43352.

It is an arithmetic number, because the mean of its divisors is an integer number (33561132).

Almost surely, 2^312130322 is an apocalyptic number.

312130322 is a deficient number, since it is larger than the sum of its proper divisors (224847790).

312130322 is a wasteful number, since it uses less digits than its factorization.

312130322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79073.

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

The square root of 312130322 is about 17667.2103627030. The cubic root of 312130322 is about 678.3367091024.

Adding to 312130322 its reverse (223031213), we get a palindrome (535161535).

The spelling of 312130322 in words is "three hundred twelve million, one hundred thirty thousand, three hundred twenty-two".