312011130 has 32 divisors (see below), whose sum is σ = 749357568. Its totient is φ = 83144000.

The previous prime is 312011111. The next prime is 312011137. The reversal of 312011130 is 31110213.

It is not an unprimeable number, because it can be changed into a prime (312011137) 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, 54295 + ... + 59765.

It is an arithmetic number, because the mean of its divisors is an integer number (23417424).

Almost surely, 2^312011130 is an apocalyptic number.

312011130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312011130 is an abundant number, since it is smaller than the sum of its proper divisors (437346438).

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

312011130 is a wasteful number, since it uses less digits than its factorization.

312011130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7382.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 312011130 is about 17663.8367859307. The cubic root of 312011130 is about 678.2503535034.

Adding to 312011130 its reverse (31110213), we get a palindrome (343121343).

The spelling of 312011130 in words is "three hundred twelve million, eleven thousand, one hundred thirty".