1318478112 has 432 divisors, whose sum is σ = 4763146752. Its totient is φ = 338411520.

The previous prime is 1318478107. The next prime is 1318478131. The reversal of 1318478112 is 2118748131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 18061308 + ... + 18061380.

Almost surely, 2^1318478112 is an apocalyptic number.

1318478112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318478112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2381573376).

1318478112 is an abundant number, since it is smaller than the sum of its proper divisors (3444668640).

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

1318478112 is a wasteful number, since it uses less digits than its factorization.

1318478112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 133 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 1318478112 is about 36310.8539144978. The cubic root of 1318478112 is about 1096.5395695113.

The spelling of 1318478112 in words is "one billion, three hundred eighteen million, four hundred seventy-eight thousand, one hundred twelve".