4312120111 has 4 divisors (see below), whose sum is σ = 4643821672. Its totient is φ = 3980418552.

The previous prime is 4312120093. The next prime is 4312120199. The reversal of 4312120111 is 1110212134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1110212134 = 2 ⋅555106067.

It is a cyclic number.

It is not a de Polignac number, because 4312120111 - 2⁷ = 4312119983 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 (4312120811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165850761 + ... + 165850786.

It is an arithmetic number, because the mean of its divisors is an integer number (1160955418).

Almost surely, 2^4312120111 is an apocalyptic number.

4312120111 is a deficient number, since it is larger than the sum of its proper divisors (331701561).

4312120111 is a wasteful number, since it uses less digits than its factorization.

4312120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331701560.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 4312120111 is about 65666.7351937037. The cubic root of 4312120111 is about 1627.6597214496.

Adding to 4312120111 its reverse (1110212134), we get a palindrome (5422332245).

The spelling of 4312120111 in words is "four billion, three hundred twelve million, one hundred twenty thousand, one hundred eleven".