1081260000 has 180 divisors, whose sum is σ = 3842951112. Its totient is φ = 288288000.

The previous prime is 1081259989. The next prime is 1081260017. The reversal of 1081260000 is 621801.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 176997 + ... + 183003.

It is a vampire number, since it can be written as 18021 ⋅ 60000 (with its own digits).

Almost surely, 2^1081260000 is an apocalyptic number.

1081260000 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 1081260000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1921475556).

1081260000 is an abundant number, since it is smaller than the sum of its proper divisors (2761691112).

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

1081260000 is an equidigital number, since it uses as much as digits as its factorization.

1081260000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043 (or 6017 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1081260000 is about 32882.5181517474. The cubic root of 1081260000 is about 1026.3844073296.

Adding to 1081260000 its reverse (621801), we get a palindrome (1081881801).

The spelling of 1081260000 in words is "one billion, eighty-one million, two hundred sixty thousand".