1013223220440 has 64 divisors (see below), whose sum is σ = 3076292217600. Its totient is φ = 266937520512.

The previous prime is 1013223220421. The next prime is 1013223220441. The reversal of 1013223220440 is 440223223101.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1013223220440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013223220441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50854660 + ... + 50874579.

It is an arithmetic number, because the mean of its divisors is an integer number (48067065900).

Almost surely, 2^{1013223220440} is an apocalyptic number.

1013223220440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013223220440 is an abundant number, since it is smaller than the sum of its proper divisors (2063068997160).

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

1013223220440 is a wasteful number, since it uses less digits than its factorization.

1013223220440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101729336 (or 101729332 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1013223220440 its reverse (440223223101), we get a palindrome (1453446443541).

The spelling of 1013223220440 in words is "one trillion, thirteen billion, two hundred twenty-three million, two hundred twenty thousand, four hundred forty".