312022020030 has 64 divisors (see below), whose sum is σ = 856517760000. Its totient is φ = 71262157824.

The previous prime is 312022019993. The next prime is 312022020061. The reversal of 312022020030 is 30020220213.

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

It is a junction number, because it is equal to n+sod(n) for n = 312022019991 and 312022020009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332514 + ... + 857093.

It is an arithmetic number, because the mean of its divisors is an integer number (13383090000).

Almost surely, 2^312022020030 is an apocalyptic number.

312022020030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312022020030 is an abundant number, since it is smaller than the sum of its proper divisors (544495739970).

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

312022020030 is a wasteful number, since it uses less digits than its factorization.

312022020030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190873.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 312022020030 its reverse (30020220213), we get a palindrome (342042240243).

The spelling of 312022020030 in words is "three hundred twelve billion, twenty-two million, twenty thousand, thirty".