312120144134 has 4 divisors (see below), whose sum is σ = 468180216204. Its totient is φ = 156060072066.

The previous prime is 312120144113. The next prime is 312120144137. The reversal of 312120144134 is 431441021213.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312120144137) 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 as a sum of consecutive naturals, namely, 78030036032 + ... + 78030036035.

It is an arithmetic number, because the mean of its divisors is an integer number (117045054051).

Almost surely, 2^312120144134 is an apocalyptic number.

312120144134 is a deficient number, since it is larger than the sum of its proper divisors (156060072070).

312120144134 is a wasteful number, since it uses less digits than its factorization.

312120144134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156060072069.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 312120144134 its reverse (431441021213), we get a palindrome (743561165347).

The spelling of 312120144134 in words is "three hundred twelve billion, one hundred twenty million, one hundred forty-four thousand, one hundred thirty-four".