312111211001 has 8 divisors (see below), whose sum is σ = 319770962784. Its totient is φ = 304453710880.

The previous prime is 312111210977. The next prime is 312111211043. The reversal of 312111211001 is 100112111213.

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

It is a cyclic number.

It is not a de Polignac number, because 312111211001 - 2⁶ = 312111210937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312111211301) 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 7 ways as a sum of consecutive naturals, for example, 280571 + ... + 838416.

It is an arithmetic number, because the mean of its divisors is an integer number (39971370348).

Almost surely, 2^312111211001 is an apocalyptic number.

It is an amenable number.

312111211001 is a deficient number, since it is larger than the sum of its proper divisors (7659751783).

312111211001 is a wasteful number, since it uses less digits than its factorization.

312111211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125831.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 312111211001 its reverse (100112111213), we get a palindrome (412223322214).

The spelling of 312111211001 in words is "three hundred twelve billion, one hundred eleven million, two hundred eleven thousand, one".