1111423340440 has 64 divisors (see below), whose sum is σ = 2866961563200. Its totient is φ = 379857320448.

The previous prime is 1111423340429. The next prime is 1111423340497. The reversal of 1111423340440 is 440433241111.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1111423340399 and 1111423340408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6172075 + ... + 6349594.

It is an arithmetic number, because the mean of its divisors is an integer number (44796274425).

Almost surely, 2^{1111423340440} is an apocalyptic number.

1111423340440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111423340440 is an abundant number, since it is smaller than the sum of its proper divisors (1755538222760).

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

1111423340440 is a wasteful number, since it uses less digits than its factorization.

1111423340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12522004 (or 12522000 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1111423340440 its reverse (440433241111), we get a palindrome (1551856581551).

The spelling of 1111423340440 in words is "one trillion, one hundred eleven billion, four hundred twenty-three million, three hundred forty thousand, four hundred forty".