312040133155 has 32 divisors (see below), whose sum is σ = 385484702400. Its totient is φ = 242337177600.

The previous prime is 312040133149. The next prime is 312040133173. The reversal of 312040133155 is 551331040213.

It is a happy number.

It is not a de Polignac number, because 312040133155 - 2³ = 312040133147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51226660 + ... + 51232750.

It is an arithmetic number, because the mean of its divisors is an integer number (12046396950).

Almost surely, 2^312040133155 is an apocalyptic number.

312040133155 is a deficient number, since it is larger than the sum of its proper divisors (73444569245).

312040133155 is a wasteful number, since it uses less digits than its factorization.

312040133155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7335.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 312040133155 its reverse (551331040213), we get a palindrome (863371173368).

The spelling of 312040133155 in words is "three hundred twelve billion, forty million, one hundred thirty-three thousand, one hundred fifty-five".