312000133311242 has 16 divisors (see below), whose sum is σ = 468035043649992. Its totient is φ = 155988452505600.

The previous prime is 312000133311199. The next prime is 312000133311257. The reversal of 312000133311242 is 242113331000213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 171993283973641 + 140006849337601 = 13114621^2 + 11832449^2 .

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 7 ways as a sum of consecutive naturals, for example, 2626182242 + ... + 2626301042.

Almost surely, 2^{312000133311242} is an apocalyptic number.

312000133311242 is a deficient number, since it is larger than the sum of its proper divisors (156034910338750).

312000133311242 is a wasteful number, since it uses less digits than its factorization.

312000133311242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205513.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 312000133311242 its reverse (242113331000213), we get a palindrome (554113464311455).

The spelling of 312000133311242 in words is "three hundred twelve trillion, one hundred thirty-three million, three hundred eleven thousand, two hundred forty-two".