1118321339520 has 1152 divisors, whose sum is σ = 4706381836800. Its totient is φ = 224811417600.

The previous prime is 1118321339507. The next prime is 1118321339533. The reversal of 1118321339520 is 259331238111.

It is an interprime number because it is at equal distance from previous prime (1118321339507) and next prime (1118321339533).

It is a super-2 number, since 2×1118321339520² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 352892496 + ... + 352895664.

It is an arithmetic number, because the mean of its divisors is an integer number (4085400900).

Almost surely, 2^{1118321339520} is an apocalyptic number.

1118321339520 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 1118321339520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2353190918400).

1118321339520 is an abundant number, since it is smaller than the sum of its proper divisors (3588060497280).

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

1118321339520 is a wasteful number, since it uses less digits than its factorization.

1118321339520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258 (or 3228 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 1118321339520 in words is "one trillion, one hundred eighteen billion, three hundred twenty-one million, three hundred thirty-nine thousand, five hundred twenty".