11310423040 has 132 divisors (see below), whose sum is σ = 31562136216. Its totient is φ = 3877773312.

The previous prime is 11310423011. The next prime is 11310423049. The reversal of 11310423040 is 4032401311.

It is a junction number, because it is equal to n+sod(n) for n = 11310422999 and 11310423017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11310423049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228339 + ... + 273421.

Almost surely, 2^11310423040 is an apocalyptic number.

11310423040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11310423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15781068108).

11310423040 is an abundant number, since it is smaller than the sum of its proper divisors (20251713176).

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

11310423040 is an equidigital number, since it uses as much as digits as its factorization.

11310423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45122 (or 45097 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11310423040 its reverse (4032401311), we get a palindrome (15342824351).

The spelling of 11310423040 in words is "eleven billion, three hundred ten million, four hundred twenty-three thousand, forty".