3112111123111 has 48 divisors (see below), whose sum is σ = 3628309708800. Its totient is φ = 2658086419968.

The previous prime is 3112111123061. The next prime is 3112111123153. The reversal of 3112111123111 is 1113211112113.

It is a de Polignac number, because none of the positive numbers 2^k-3112111123111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112111123811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20146410 + ... + 20300296.

It is an arithmetic number, because the mean of its divisors is an integer number (75589785600).

Almost surely, 2^{3112111123111} is an apocalyptic number.

3112111123111 is a deficient number, since it is larger than the sum of its proper divisors (516198585689).

3112111123111 is a wasteful number, since it uses less digits than its factorization.

3112111123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154096 (or 154079 counting only the distinct ones).

The product of its digits is 36, while the sum is 19.

Adding to 3112111123111 its reverse (1113211112113), we get a palindrome (4225322235224).

The spelling of 3112111123111 in words is "three trillion, one hundred twelve billion, one hundred eleven million, one hundred twenty-three thousand, one hundred eleven".