312320221111101 has 16 divisors (see below), whose sum is σ = 475960354675200. Its totient is φ = 178452262552368.

The previous prime is 312320221111099. The next prime is 312320221111103. The reversal of 312320221111101 is 101111122023213.

It is an interprime number because it is at equal distance from previous prime (312320221111099) and next prime (312320221111103).

It is not a de Polignac number, because 312320221111101 - 2¹ = 312320221111099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312320221111103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684567591 + ... + 685023668.

It is an arithmetic number, because the mean of its divisors is an integer number (29747522167200).

Almost surely, 2^{312320221111101} is an apocalyptic number.

It is an amenable number.

312320221111101 is a deficient number, since it is larger than the sum of its proper divisors (163640133564099).

312320221111101 is a wasteful number, since it uses less digits than its factorization.

312320221111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369602128.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 312320221111101 its reverse (101111122023213), we get a palindrome (413431343134314).

The spelling of 312320221111101 in words is "three hundred twelve trillion, three hundred twenty billion, two hundred twenty-one million, one hundred eleven thousand, one hundred one".