312002130 has 192 divisors, whose sum is σ = 890797824. Its totient is φ = 69696000.

The previous prime is 312002111. The next prime is 312002137. The reversal of 312002130 is 31200213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312002137) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3089080 + ... + 3089180.

It is an arithmetic number, because the mean of its divisors is an integer number (4639572).

Almost surely, 2^312002130 is an apocalyptic number.

312002130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312002130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445398912).

312002130 is an abundant number, since it is smaller than the sum of its proper divisors (578795694).

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

312002130 is a wasteful number, since it uses less digits than its factorization.

312002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 312002130 is about 17663.5820263049. The cubic root of 312002130 is about 678.2438320353.

Adding to 312002130 its reverse (31200213), we get a palindrome (343202343).

The spelling of 312002130 in words is "three hundred twelve million, two thousand, one hundred thirty".