3123402100 has 108 divisors (see below), whose sum is σ = 8491021644. Its totient is φ = 988485120.

The previous prime is 3123402097. The next prime is 3123402127. The reversal of 3123402100 is 12043213.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 721029904 + 2402372196 = 26852^2 + 49014^2 .

It is a congruent number.

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 35 ways as a sum of consecutive naturals, for example, 39184 + ... + 88216.

Almost surely, 2^3123402100 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 3123402100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4245510822).

3123402100 is an abundant number, since it is smaller than the sum of its proper divisors (5367619544).

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

3123402100 is a wasteful number, since it uses less digits than its factorization.

3123402100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49074 (or 49060 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3123402100 is about 55887.4055579609. The cubic root of 3123402100 is about 1461.7596379316.

Adding to 3123402100 its reverse (12043213), we get a palindrome (3135445313).

The spelling of 3123402100 in words is "three billion, one hundred twenty-three million, four hundred two thousand, one hundred".