3123938942 has 16 divisors (see below), whose sum is σ = 4800114432. Its totient is φ = 1524102360.

The previous prime is 3123938929. The next prime is 3123938947. The reversal of 3123938942 is 2498393213.

It is a junction number, because it is equal to n+sod(n) for n = 3123938893 and 3123938902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123938947) 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, 19088 + ... + 81315.

It is an arithmetic number, because the mean of its divisors is an integer number (300007152).

Almost surely, 2^3123938942 is an apocalyptic number.

3123938942 is a deficient number, since it is larger than the sum of its proper divisors (1676175490).

3123938942 is a wasteful number, since it uses less digits than its factorization.

3123938942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100783.

The product of its digits is 279936, while the sum is 44.

The square root of 3123938942 is about 55892.2082405052. The cubic root of 3123938942 is about 1461.8433809131.

The spelling of 3123938942 in words is "three billion, one hundred twenty-three million, nine hundred thirty-eight thousand, nine hundred forty-two".