3123111442 has 64 divisors (see below), whose sum is σ = 5541903360. Its totient is φ = 1305057600.

The previous prime is 3123111437. The next prime is 3123111451. The reversal of 3123111442 is 2441113213.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4856773 + ... + 4857415.

It is an arithmetic number, because the mean of its divisors is an integer number (86592240).

Almost surely, 2^3123111442 is an apocalyptic number.

3123111442 is a deficient number, since it is larger than the sum of its proper divisors (2418791918).

3123111442 is a wasteful number, since it uses less digits than its factorization.

3123111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039.

The product of its digits is 576, while the sum is 22.

The square root of 3123111442 is about 55884.8051083655. The cubic root of 3123111442 is about 1461.7142936458.

Adding to 3123111442 its reverse (2441113213), we get a palindrome (5564224655).

The spelling of 3123111442 in words is "three billion, one hundred twenty-three million, one hundred eleven thousand, four hundred forty-two".