11231402424 has 128 divisors (see below), whose sum is σ = 32092692480. Its totient is φ = 3244348800.

The previous prime is 11231402419. The next prime is 11231402443. The reversal of 11231402424 is 42420413211.

It is a super-2 number, since 2×11231402424² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 11231402394 and 11231402403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538087 + ... + 558569.

It is an arithmetic number, because the mean of its divisors is an integer number (250724160).

Almost surely, 2^11231402424 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 11231402424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16046346240).

11231402424 is an abundant number, since it is smaller than the sum of its proper divisors (20861290056).

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

11231402424 is a wasteful number, since it uses less digits than its factorization.

11231402424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20601 (or 20597 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11231402424 its reverse (42420413211), we get a palindrome (53651815635).

The spelling of 11231402424 in words is "eleven billion, two hundred thirty-one million, four hundred two thousand, four hundred twenty-four".