3123111400 has 48 divisors (see below), whose sum is σ = 7293327840. Its totient is φ = 1243723200.

The previous prime is 3123111349. The next prime is 3123111421. The reversal of 3123111400 is 41113213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11005 + ... + 79795.

It is an arithmetic number, because the mean of its divisors is an integer number (151944330).

Almost surely, 2^3123111400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123111400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3646663920).

3123111400 is an abundant number, since it is smaller than the sum of its proper divisors (4170216440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3123111400 is a wasteful number, since it uses less digits than its factorization.

3123111400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69034 (or 69025 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3123111400 is about 55884.8047325926. The cubic root of 3123111400 is about 1461.7142870934.

Adding to 3123111400 its reverse (41113213), we get a palindrome (3164224613).

The spelling of 3123111400 in words is "three billion, one hundred twenty-three million, one hundred eleven thousand, four hundred".