3123320042 has 8 divisors (see below), whose sum is σ = 4685362500. Its totient is φ = 1561532544.

The previous prime is 3123320027. The next prime is 3123320047. The reversal of 3123320042 is 2400233213.

It can be written as a sum of positive squares in 2 ways, for example, as 2924538241 + 198781801 = 54079^2 + 14099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3123319996 and 3123320023.

It is not an unprimeable number, because it can be changed into a prime (3123320047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29417 + ... + 84332.

Almost surely, 2^3123320042 is an apocalyptic number.

3123320042 is a deficient number, since it is larger than the sum of its proper divisors (1562042458).

3123320042 is a wasteful number, since it uses less digits than its factorization.

3123320042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127480.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3123320042 is about 55886.6714163583. The cubic root of 3123320042 is about 1461.7468367062.

Adding to 3123320042 its reverse (2400233213), we get a palindrome (5523553255).

The spelling of 3123320042 in words is "three billion, one hundred twenty-three million, three hundred twenty thousand, forty-two".