11421551104430 has 32 divisors (see below), whose sum is σ = 21114679449600. Its totient is φ = 4445092753920.

The previous prime is 11421551104391. The next prime is 11421551104471. The reversal of 11421551104430 is 3440115512411.

It is a super-2 number, since 2×11421551104430² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53973971 + ... + 54185169.

It is an arithmetic number, because the mean of its divisors is an integer number (659833732800).

Almost surely, 2^{11421551104430} is an apocalyptic number.

11421551104430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11421551104430 is a deficient number, since it is larger than the sum of its proper divisors (9693128345170).

11421551104430 is a wasteful number, since it uses less digits than its factorization.

11421551104430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357404.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 11421551104430 its reverse (3440115512411), we get a palindrome (14861666616841).

The spelling of 11421551104430 in words is "eleven trillion, four hundred twenty-one billion, five hundred fifty-one million, one hundred four thousand, four hundred thirty".