1243113480 has 320 divisors, whose sum is σ = 4861296000. Its totient is φ = 279023616.

The previous prime is 1243113479. The next prime is 1243113503. The reversal of 1243113480 is 843113421.

1243113480 is a `hidden beast` number, since 1 + 2 + 4 + 311 + 348 + 0 = 666.

It is a super-2 number, since 2×1243113480² = 3090662248315420800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1337656 + ... + 1338584.

It is an arithmetic number, because the mean of its divisors is an integer number (15191550).

Almost surely, 2^1243113480 is an apocalyptic number.

1243113480 is a gapful number since it is divisible by the number (10) 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 1243113480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2430648000).

1243113480 is an abundant number, since it is smaller than the sum of its proper divisors (3618182520).

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

1243113480 is a wasteful number, since it uses less digits than its factorization.

1243113480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1243113480 is about 35257.8144529691. The cubic root of 1243113480 is about 1075.2354933875.

The spelling of 1243113480 in words is "one billion, two hundred forty-three million, one hundred thirteen thousand, four hundred eighty".