11012331040 has 96 divisors (see below), whose sum is σ = 26897436720. Its totient is φ = 4257792000.

The previous prime is 11012330957. The next prime is 11012331091. The reversal of 11012331040 is 4013321011.

It can be written as a sum of positive squares in 8 ways, for example, as 6607088656 + 4405242384 = 81284^2 + 66372^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707340 + ... + 722740.

Almost surely, 2^11012331040 is an apocalyptic number.

11012331040 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 11012331040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13448718360).

11012331040 is an abundant number, since it is smaller than the sum of its proper divisors (15885105680).

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

11012331040 is a wasteful number, since it uses less digits than its factorization.

11012331040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15566 (or 15558 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11012331040 its reverse (4013321011), we get a palindrome (15025652051).

The spelling of 11012331040 in words is "eleven billion, twelve million, three hundred thirty-one thousand, forty".