312030030 has 32 divisors (see below), whose sum is σ = 806478624. Its totient is φ = 76807296.

The previous prime is 312030007. The next prime is 312030031. The reversal of 312030030 is 30030213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312029988 and 312030015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312030031) 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, 399649 + ... + 400428.

It is an arithmetic number, because the mean of its divisors is an integer number (25202457).

Almost surely, 2^312030030 is an apocalyptic number.

312030030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312030030 is an abundant number, since it is smaller than the sum of its proper divisors (494448594).

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

312030030 is a wasteful number, since it uses less digits than its factorization.

312030030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800100.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 312030030 is about 17664.3717691856. The cubic root of 312030030 is about 678.2640481782.

Adding to 312030030 its reverse (30030213), we get a palindrome (342060243).

The spelling of 312030030 in words is "three hundred twelve million, thirty thousand, thirty".