312231142530 has 64 divisors (see below), whose sum is σ = 832762944000. Its totient is φ = 83246981760.

The previous prime is 312231142507. The next prime is 312231142577. The reversal of 312231142530 is 35241132213.

312231142530 is a `hidden beast` number, since 3 + 1 + 2 + 231 + 1 + 425 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 312231142494 and 312231142503.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1480375 + ... + 1678085.

It is an arithmetic number, because the mean of its divisors is an integer number (13011921000).

Almost surely, 2^312231142530 is an apocalyptic number.

312231142530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312231142530 is an abundant number, since it is smaller than the sum of its proper divisors (520531801470).

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

312231142530 is a wasteful number, since it uses less digits than its factorization.

312231142530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203576 (or 203570 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 312231142530 its reverse (35241132213), we get a palindrome (347472274743).

It can be divided in two parts, 3122311 and 42530, that added together give a square (3164841 = 1779²).

The spelling of 312231142530 in words is "three hundred twelve billion, two hundred thirty-one million, one hundred forty-two thousand, five hundred thirty".