1101240000 has 840 divisors, whose sum is σ = 4951415040. Its totient is φ = 228096000.

The previous prime is 1101239983. The next prime is 1101240011. The reversal of 1101240000 is 421011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (840).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 47879989 + ... + 47880011.

Almost surely, 2^1101240000 is an apocalyptic number.

1101240000 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 1101240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2475707520).

1101240000 is an abundant number, since it is smaller than the sum of its proper divisors (3850175040).

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

1101240000 is a wasteful number, since it uses less digits than its factorization.

1101240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1101240000 is about 33184.9363416596. The cubic root of 1101240000 is about 1032.6678568698.

Adding to 1101240000 its reverse (421011), we get a palindrome (1101661011).

The spelling of 1101240000 in words is "one billion, one hundred one million, two hundred forty thousand".