303431011040 has 96 divisors (see below), whose sum is σ = 723758245056. Its totient is φ = 120209121280.

The previous prime is 303431011007. The next prime is 303431011049. The reversal of 303431011040 is 40110134303.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303431011049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7259000 + ... + 7300680.

It is an arithmetic number, because the mean of its divisors is an integer number (7539148386).

Almost surely, 2^303431011040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303431011040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361879122528).

303431011040 is an abundant number, since it is smaller than the sum of its proper divisors (420327234016).

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

303431011040 is a wasteful number, since it uses less digits than its factorization.

303431011040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42132 (or 42124 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 303431011040 its reverse (40110134303), we get a palindrome (343541145343).

The spelling of 303431011040 in words is "three hundred three billion, four hundred thirty-one million, eleven thousand, forty".