312552134420 has 12 divisors (see below), whose sum is σ = 656359482324. Its totient is φ = 125020853760.

The previous prime is 312552134413. The next prime is 312552134449. The reversal of 312552134420 is 24431255213.

It can be written as a sum of positive squares in 2 ways, for example, as 141807977476 + 170744156944 = 376574^2 + 413212^2 .

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 3 ways as a sum of consecutive naturals, for example, 7813803341 + ... + 7813803380.

It is an arithmetic number, because the mean of its divisors is an integer number (54696623527).

Almost surely, 2^312552134420 is an apocalyptic number.

It is an amenable number.

312552134420 is an abundant number, since it is smaller than the sum of its proper divisors (343807347904).

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

312552134420 is a wasteful number, since it uses less digits than its factorization.

312552134420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15627606730 (or 15627606728 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 312552134420 its reverse (24431255213), we get a palindrome (336983389633).

The spelling of 312552134420 in words is "three hundred twelve billion, five hundred fifty-two million, one hundred thirty-four thousand, four hundred twenty".