312311130 has 32 divisors (see below), whose sum is σ = 750406464. Its totient is φ = 83187456.

The previous prime is 312311123. The next prime is 312311137. The reversal of 312311130 is 31113213.

It is an interprime number because it is at equal distance from previous prime (312311123) and next prime (312311137).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (312311137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22914 + ... + 33906.

It is an arithmetic number, because the mean of its divisors is an integer number (23450202).

Almost surely, 2^312311130 is an apocalyptic number.

312311130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312311130 is an abundant number, since it is smaller than the sum of its proper divisors (438095334).

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

312311130 is a wasteful number, since it uses less digits than its factorization.

312311130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11950.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 312311130 is about 17672.3266719467. The cubic root of 312311130 is about 678.4676640491.

Adding to 312311130 its reverse (31113213), we get a palindrome (343424343).

The spelling of 312311130 in words is "three hundred twelve million, three hundred eleven thousand, one hundred thirty".