1153123680 has 192 divisors, whose sum is σ = 3847253760. Its totient is φ = 289511424.

The previous prime is 1153123663. The next prime is 1153123693. The reversal of 1153123680 is 863213511.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 2069962 + ... + 2070518.

It is an arithmetic number, because the mean of its divisors is an integer number (20037780).

Almost surely, 2^1153123680 is an apocalyptic number.

1153123680 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 1153123680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923626880).

1153123680 is an abundant number, since it is smaller than the sum of its proper divisors (2694130080).

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

1153123680 is a wasteful number, since it uses less digits than its factorization.

1153123680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1153123680 is about 33957.6748320612. The cubic root of 1153123680 is about 1048.6372889006.

The spelling of 1153123680 in words is "one billion, one hundred fifty-three million, one hundred twenty-three thousand, six hundred eighty".