1005113422500 has 360 divisors, whose sum is σ = 3227814418752. Its totient is φ = 243170400000.

The previous prime is 1005113422487. The next prime is 1005113422513. The reversal of 1005113422500 is 52243115001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1005113422487) and next prime (1005113422513).

It is a super-4 number, since 4×1005113422500⁴ (a number of 49 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 665196745 + ... + 665198255.

Almost surely, 2^{1005113422500} is an apocalyptic number.

1005113422500 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 1005113422500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613907209376).

1005113422500 is an abundant number, since it is smaller than the sum of its proper divisors (2222700996252).

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

1005113422500 is a wasteful number, since it uses less digits than its factorization.

1005113422500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 1005113422500 its reverse (52243115001), we get a palindrome (1057356537501).

The spelling of 1005113422500 in words is "one trillion, five billion, one hundred thirteen million, four hundred twenty-two thousand, five hundred".