3123210040 has 32 divisors (see below), whose sum is σ = 7031376000. Its totient is φ = 1248545664.

The previous prime is 3123210031. The next prime is 3123210047. The reversal of 3123210040 is 400123213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3123209996 and 3123210023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123210047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48166 + ... + 92554.

It is an arithmetic number, because the mean of its divisors is an integer number (219730500).

Almost surely, 2^3123210040 is an apocalyptic number.

It is an amenable number.

3123210040 is an abundant number, since it is smaller than the sum of its proper divisors (3908165960).

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

3123210040 is a wasteful number, since it uses less digits than its factorization.

3123210040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46159 (or 46155 counting only the distinct ones).

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

The square root of 3123210040 is about 55885.6872553250. The cubic root of 3123210040 is about 1461.7296758047.

Adding to 3123210040 its reverse (400123213), we get a palindrome (3523333253).

The spelling of 3123210040 in words is "three billion, one hundred twenty-three million, two hundred ten thousand, forty".