3109931242 has 16 divisors (see below), whose sum is σ = 5090224032. Its totient is φ = 1413259120.

The previous prime is 3109931197. The next prime is 3109931249. The reversal of 3109931242 is 2421399013.

It is a junction number, because it is equal to n+sod(n) for n = 3109931198 and 3109931207.

It is not an unprimeable number, because it can be changed into a prime (3109931249) 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, 89193 + ... + 119059.

It is an arithmetic number, because the mean of its divisors is an integer number (318139002).

Almost surely, 2^3109931242 is an apocalyptic number.

3109931242 is a deficient number, since it is larger than the sum of its proper divisors (1980292790).

3109931242 is a wasteful number, since it uses less digits than its factorization.

3109931242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34613.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 3109931242 is about 55766.7574994279. The cubic root of 3109931242 is about 1459.6551449849.

The spelling of 3109931242 in words is "three billion, one hundred nine million, nine hundred thirty-one thousand, two hundred forty-two".