11444131430 has 16 divisors (see below), whose sum is σ = 21263935104. Its totient is φ = 4429986240.

The previous prime is 11444131423. The next prime is 11444131507. The reversal of 11444131430 is 3413144411.

It is a happy number.

It is a super-2 number, since 2×11444131430² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11444131430.

It is a congruent number.

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, 18457967 + ... + 18458586.

It is an arithmetic number, because the mean of its divisors is an integer number (1328995944).

Almost surely, 2^11444131430 is an apocalyptic number.

11444131430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11444131430 is a deficient number, since it is larger than the sum of its proper divisors (9819803674).

11444131430 is a wasteful number, since it uses less digits than its factorization.

11444131430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36916591.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11444131430 its reverse (3413144411), we get a palindrome (14857275841).

The spelling of 11444131430 in words is "eleven billion, four hundred forty-four million, one hundred thirty-one thousand, four hundred thirty".