1000313220440 has 16 divisors (see below), whose sum is σ = 2250704746080. Its totient is φ = 400125288160.

The previous prime is 1000313220433. The next prime is 1000313220479. The reversal of 1000313220440 is 440223130001.

1000313220440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12503915216 + ... + 12503915295.

It is an arithmetic number, because the mean of its divisors is an integer number (140669046630).

Almost surely, 2^{1000313220440} is an apocalyptic number.

1000313220440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000313220440 is an abundant number, since it is smaller than the sum of its proper divisors (1250391525640).

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

1000313220440 is a wasteful number, since it uses less digits than its factorization.

1000313220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25007830522 (or 25007830518 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1000313220440 its reverse (440223130001), we get a palindrome (1440536350441).

The spelling of 1000313220440 in words is "one trillion, three hundred thirteen million, two hundred twenty thousand, four hundred forty".