1158380123000 has 128 divisors (see below), whose sum is σ = 2779687497600. Its totient is φ = 451690624000.

The previous prime is 1158380122987. The next prime is 1158380123009. The reversal of 1158380123000 is 3210838511.

It is a super-2 number, since 2×1158380123000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158380123009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6227342 + ... + 6410658.

It is an arithmetic number, because the mean of its divisors is an integer number (21716308575).

Almost surely, 2^{1158380123000} is an apocalyptic number.

1158380123000 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 1158380123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1389843748800).

1158380123000 is an abundant number, since it is smaller than the sum of its proper divisors (1621307374600).

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

1158380123000 is a wasteful number, since it uses less digits than its factorization.

1158380123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183498 (or 183484 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 1158380123000 in words is "one trillion, one hundred fifty-eight billion, three hundred eighty million, one hundred twenty-three thousand".