11231405450 has 12 divisors (see below), whose sum is σ = 20890414230. Its totient is φ = 4492562160.

The previous prime is 11231405443. The next prime is 11231405459. The reversal of 11231405450 is 5450413211.

11231405450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 9500595841 + 1730809609 = 97471^2 + 41603^2 .

It is a super-2 number, since 2×11231405450² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11231405459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112314005 + ... + 112314104.

Almost surely, 2^11231405450 is an apocalyptic number.

11231405450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11231405450 is a deficient number, since it is larger than the sum of its proper divisors (9659008780).

11231405450 is a wasteful number, since it uses less digits than its factorization.

11231405450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224628121 (or 224628116 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 11231405450 its reverse (5450413211), we get a palindrome (16681818661).

The spelling of 11231405450 in words is "eleven billion, two hundred thirty-one million, four hundred five thousand, four hundred fifty".