312002223030 has 64 divisors (see below), whose sum is σ = 834145041600. Its totient is φ = 82986681600.

The previous prime is 312002222881. The next prime is 312002223047. The reversal of 312002223030 is 30322200213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312002222994 and 312002223012.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1380271 + ... + 1590330.

It is an arithmetic number, because the mean of its divisors is an integer number (13033516275).

Almost surely, 2^312002223030 is an apocalyptic number.

312002223030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312002223030 is an abundant number, since it is smaller than the sum of its proper divisors (522142818570).

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

312002223030 is a wasteful number, since it uses less digits than its factorization.

312002223030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971006 (or 2971000 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 312002223030 its reverse (30322200213), we get a palindrome (342324423243).

The spelling of 312002223030 in words is "three hundred twelve billion, two million, two hundred twenty-three thousand, thirty".