11051251232040 has 96 divisors (see below), whose sum is σ = 35922303073800. Its totient is φ = 2946529635840.

The previous prime is 11051251232009. The next prime is 11051251232041. The reversal of 11051251232040 is 4023215215011.

It is a happy number.

11051251232040 is a `hidden beast` number, since 1 + 1 + 0 + 51 + 251 + 2 + 320 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8765851075524 + 2285400156516 = 2960718^2 + 1511754^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11051251231995 and 11051251232013.

It is not an unprimeable number, because it can be changed into a prime (11051251232041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191551 + ... + 4705230.

Almost surely, 2^{11051251232040} is an apocalyptic number.

11051251232040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11051251232040 is an abundant number, since it is smaller than the sum of its proper divisors (24871051841760).

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

11051251232040 is a wasteful number, since it uses less digits than its factorization.

11051251232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4903067 (or 4903060 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 11051251232040 its reverse (4023215215011), we get a palindrome (15074466447051).

The spelling of 11051251232040 in words is "eleven trillion, fifty-one billion, two hundred fifty-one million, two hundred thirty-two thousand, forty".