11231403111424 has 88 divisors (see below), whose sum is σ = 22547885381640. Its totient is φ = 5591695097856.

The previous prime is 11231403111389. The next prime is 11231403111479. The reversal of 11231403111424 is 42411130413211.

It can be written as a sum of positive squares in 4 ways, for example, as 3300645965824 + 7930757145600 = 1816768^2 + 2816160^2 .

It is a super-2 number, since 2×11231403111424² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231403111392 and 11231403111401.

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, 849762864 + ... + 849776080.

Almost surely, 2^{11231403111424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11231403111424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11273942690820).

11231403111424 is an abundant number, since it is smaller than the sum of its proper divisors (11316482270216).

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

11231403111424 is a wasteful number, since it uses less digits than its factorization.

11231403111424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16723 (or 16705 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 11231403111424 its reverse (42411130413211), we get a palindrome (53642533524635).

The spelling of 11231403111424 in words is "eleven trillion, two hundred thirty-one billion, four hundred three million, one hundred eleven thousand, four hundred twenty-four".