11231404434040 has 192 divisors, whose sum is σ = 31464056309760. Its totient is φ = 3530413797120.

The previous prime is 11231404434023. The next prime is 11231404434043. The reversal of 11231404434040 is 4043440413211.

11231404434040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11231404434040² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 11231404433993 and 11231404434011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231404434043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1341319 + ... + 4925641.

It is an arithmetic number, because the mean of its divisors is an integer number (163875293280).

Almost surely, 2^{11231404434040} is an apocalyptic number.

11231404434040 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 11231404434040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15732028154880).

11231404434040 is an abundant number, since it is smaller than the sum of its proper divisors (20232651875720).

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

11231404434040 is a wasteful number, since it uses less digits than its factorization.

11231404434040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584410 (or 3584387 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 11231404434040 its reverse (4043440413211), we get a palindrome (15274844847251).

The spelling of 11231404434040 in words is "eleven trillion, two hundred thirty-one billion, four hundred four million, four hundred thirty-four thousand, forty".