312130511 has 12 divisors (see below), whose sum is σ = 392098896. Its totient is φ = 243217920.

The previous prime is 312130487. The next prime is 312130519. The reversal of 312130511 is 115031213.

It is not a de Polignac number, because 312130511 - 2¹⁰ = 312129487 is a prime.

It is a super-2 number, since 2×312130511² = 194850911794242242, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 312130511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183410 + ... + 185103.

It is an arithmetic number, because the mean of its divisors is an integer number (32674908).

Almost surely, 2^312130511 is an apocalyptic number.

312130511 is a deficient number, since it is larger than the sum of its proper divisors (79968385).

312130511 is a wasteful number, since it uses less digits than its factorization.

312130511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368542 (or 368531 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 312130511 is about 17667.2157115942. The cubic root of 312130511 is about 678.3368460170.

Adding to 312130511 its reverse (115031213), we get a palindrome (427161724).

The spelling of 312130511 in words is "three hundred twelve million, one hundred thirty thousand, five hundred eleven".