312320022221111 has 8 divisors (see below), whose sum is σ = 323680335723120. Its totient is φ = 300999085890048.

The previous prime is 312320022221083. The next prime is 312320022221113. The reversal of 312320022221111 is 111122220023213.

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 312320022221111 - 2⁶ = 312320022221047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312320022221113) 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, 9844276586 + ... + 9844308311.

It is an arithmetic number, because the mean of its divisors is an integer number (40460041965390).

Almost surely, 2^{312320022221111} is an apocalyptic number.

312320022221111 is a deficient number, since it is larger than the sum of its proper divisors (11360313502009).

312320022221111 is a wasteful number, since it uses less digits than its factorization.

312320022221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19688585473.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 312320022221111 its reverse (111122220023213), we get a palindrome (423442242244324).

The spelling of 312320022221111 in words is "three hundred twelve trillion, three hundred twenty billion, twenty-two million, two hundred twenty-one thousand, one hundred eleven".