312321121311 has 8 divisors (see below), whose sum is σ = 429861328384. Its totient is φ = 201497497560.

The previous prime is 312321121279. The next prime is 312321121369. The reversal of 312321121311 is 113121123213.

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

It is not a de Polignac number, because 312321121311 - 2⁵ = 312321121279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312321121811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1679145721 + ... + 1679145906.

It is an arithmetic number, because the mean of its divisors is an integer number (53732666048).

Almost surely, 2^312321121311 is an apocalyptic number.

312321121311 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

312321121311 is a deficient number, since it is larger than the sum of its proper divisors (117540207073).

312321121311 is a wasteful number, since it uses less digits than its factorization.

312321121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358291661.

The product of its digits is 216, while the sum is 21.

Adding to 312321121311 its reverse (113121123213), we get a palindrome (425442244524).

The spelling of 312321121311 in words is "three hundred twelve billion, three hundred twenty-one million, one hundred twenty-one thousand, three hundred eleven".