3120123342 has 64 divisors (see below), whose sum is σ = 7520417280. Its totient is φ = 843042816.

The previous prime is 3120123319. The next prime is 3120123359. The reversal of 3120123342 is 2433210213.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 489198 + ... + 495534.

It is an arithmetic number, because the mean of its divisors is an integer number (117506520).

Almost surely, 2^3120123342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3120123342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3760208640).

3120123342 is an abundant number, since it is smaller than the sum of its proper divisors (4400293938).

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

3120123342 is a wasteful number, since it uses less digits than its factorization.

3120123342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6985.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3120123342 is about 55858.0642521740. The cubic root of 3120123342 is about 1461.2479699939.

Adding to 3120123342 its reverse (2433210213), we get a palindrome (5553333555).

The spelling of 3120123342 in words is "three billion, one hundred twenty million, one hundred twenty-three thousand, three hundred forty-two".