1304312112 has 40 divisors (see below), whose sum is σ = 3743860080. Its totient is φ = 434770560.

The previous prime is 1304312071. The next prime is 1304312143. The reversal of 1304312112 is 2112134031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1509189 + ... + 1510052.

It is an arithmetic number, because the mean of its divisors is an integer number (93596502).

Almost surely, 2^1304312112 is an apocalyptic number.

1304312112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1304312112 is an abundant number, since it is smaller than the sum of its proper divisors (2439547968).

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

1304312112 is a wasteful number, since it uses less digits than its factorization.

1304312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019258 (or 3019246 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1304312112 is about 36115.2614832013. The cubic root of 1304312112 is about 1092.5982713697.

Adding to 1304312112 its reverse (2112134031), we get a palindrome (3416446143).

The spelling of 1304312112 in words is "one billion, three hundred four million, three hundred twelve thousand, one hundred twelve".