3103440312 has 32 divisors (see below), whose sum is σ = 8866972800. Its totient is φ = 886697184.

The previous prime is 3103440311. The next prime is 3103440323. The reversal of 3103440312 is 2130443013.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103440311) 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, 9236262 + ... + 9236597.

It is an arithmetic number, because the mean of its divisors is an integer number (277092900).

Almost surely, 2^3103440312 is an apocalyptic number.

It is an amenable number.

3103440312 is an abundant number, since it is smaller than the sum of its proper divisors (5763532488).

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

3103440312 is a wasteful number, since it uses less digits than its factorization.

3103440312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18472875 (or 18472871 counting only the distinct ones).

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

The square root of 3103440312 is about 55708.5299752201. The cubic root of 3103440312 is about 1458.6389254498.

Adding to 3103440312 its reverse (2130443013), we get a palindrome (5233883325).

The spelling of 3103440312 in words is "three billion, one hundred three million, four hundred forty thousand, three hundred twelve".