11240232421 has 32 divisors (see below), whose sum is σ = 12836371968. Its totient is φ = 9754155840.

The previous prime is 11240232391. The next prime is 11240232461. The reversal of 11240232421 is 12423204211.

It is not a de Polignac number, because 11240232421 - 2²³ = 11231843813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11240232392 and 11240232401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240232461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3240330 + ... + 3243796.

It is an arithmetic number, because the mean of its divisors is an integer number (401136624).

Almost surely, 2^11240232421 is an apocalyptic number.

11240232421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11240232421 is a deficient number, since it is larger than the sum of its proper divisors (1596139547).

11240232421 is a wasteful number, since it uses less digits than its factorization.

11240232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11240232421 its reverse (12423204211), we get a palindrome (23663436632).

The spelling of 11240232421 in words is "eleven billion, two hundred forty million, two hundred thirty-two thousand, four hundred twenty-one".