11443431012040 has 32 divisors (see below), whose sum is σ = 26233525815480. Its totient is φ = 4491006886912.

The previous prime is 11443431012023. The next prime is 11443431012071. The reversal of 11443431012040 is 4021013434411.

It can be written as a sum of positive squares in 4 ways, for example, as 9465824448964 + 1977606563076 = 3076658^2 + 1406274^2 .

It is a super-2 number, since 2×11443431012040² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2698920289 + ... + 2698924528.

Almost surely, 2^{11443431012040} is an apocalyptic number.

11443431012040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11443431012040 is an abundant number, since it is smaller than the sum of its proper divisors (14790094803440).

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

11443431012040 is a wasteful number, since it uses less digits than its factorization.

11443431012040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397844881 (or 5397844877 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 11443431012040 its reverse (4021013434411), we get a palindrome (15464444446451).

The spelling of 11443431012040 in words is "eleven trillion, four hundred forty-three billion, four hundred thirty-one million, twelve thousand, forty".