3123023042 has 4 divisors (see below), whose sum is σ = 4684534566. Its totient is φ = 1561511520.

The previous prime is 3123022993. The next prime is 3123023069. The reversal of 3123023042 is 2403203213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2546110681 + 576912361 = 50459^2 + 24019^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780755759 + ... + 780755762.

Almost surely, 2^3123023042 is an apocalyptic number.

3123023042 is a deficient number, since it is larger than the sum of its proper divisors (1561511524).

3123023042 is a wasteful number, since it uses less digits than its factorization.

3123023042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561511523.

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

The square root of 3123023042 is about 55884.0141901063. The cubic root of 3123023042 is about 1461.7005021897.

Adding to 3123023042 its reverse (2403203213), we get a palindrome (5526226255).

The spelling of 3123023042 in words is "three billion, one hundred twenty-three million, twenty-three thousand, forty-two".