312130680 has 32 divisors (see below), whose sum is σ = 936392400. Its totient is φ = 83234816.

The previous prime is 312130673. The next prime is 312130681. The reversal of 312130680 is 86031213.

It is a super-2 number, since 2×312130680² = 194851122794524800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 312130680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130681) 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, 1300425 + ... + 1300664.

Almost surely, 2^312130680 is an apocalyptic number.

312130680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312130680 is an abundant number, since it is smaller than the sum of its proper divisors (624261720).

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

312130680 is a wasteful number, since it uses less digits than its factorization.

312130680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601103 (or 2601099 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 312130680 is about 17667.2204944638. The cubic root of 312130680 is about 678.3369684433.

Adding to 312130680 its reverse (86031213), we get a palindrome (398161893).

The spelling of 312130680 in words is "three hundred twelve million, one hundred thirty thousand, six hundred eighty".