312013134552155 has 8 divisors (see below), whose sum is σ = 378275717766912. Its totient is φ = 247037203438848.

The previous prime is 312013134552113. The next prime is 312013134552199. The reversal of 312013134552155 is 551255431310213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312013134552155 - 2²⁰ = 312013133503579 is a prime.

It is a super-2 number, since 2×312013134552155² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321663024827 + ... + 321663025796.

It is an arithmetic number, because the mean of its divisors is an integer number (47284464720864).

Almost surely, 2^{312013134552155} is an apocalyptic number.

312013134552155 is a deficient number, since it is larger than the sum of its proper divisors (66262583214757).

312013134552155 is an equidigital number, since it uses as much as digits as its factorization.

312013134552155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643326050725.

The product of its (nonzero) digits is 270000, while the sum is 41.

Adding to 312013134552155 its reverse (551255431310213), we get a palindrome (863268565862368).

The spelling of 312013134552155 in words is "three hundred twelve trillion, thirteen billion, one hundred thirty-four million, five hundred fifty-two thousand, one hundred fifty-five".