312135143055 has 16 divisors (see below), whose sum is σ = 516637478880. Its totient is φ = 160731659648.

The previous prime is 312135143053. The next prime is 312135143087. The reversal of 312135143055 is 550341531213.

It is a cyclic number.

It is not a de Polignac number, because 312135143055 - 2¹ = 312135143053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312135143051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358775592 + ... + 358776461.

It is an arithmetic number, because the mean of its divisors is an integer number (32289842430).

Almost surely, 2^312135143055 is an apocalyptic number.

312135143055 is a deficient number, since it is larger than the sum of its proper divisors (204502335825).

312135143055 is a wasteful number, since it uses less digits than its factorization.

312135143055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717552090.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 312135143055 its reverse (550341531213), we get a palindrome (862476674268).

The spelling of 312135143055 in words is "three hundred twelve billion, one hundred thirty-five million, one hundred forty-three thousand, fifty-five".