303142251240 has 192 divisors, whose sum is σ = 1040436109440. Its totient is φ = 76391462400.

The previous prime is 303142251221. The next prime is 303142251241. The reversal of 303142251240 is 42152241303.

303142251240 is a `hidden beast` number, since 3 + 0 + 3 + 142 + 2 + 512 + 4 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (303142251241) 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, 466690 + ... + 907790.

It is an arithmetic number, because the mean of its divisors is an integer number (5418938070).

Almost surely, 2^303142251240 is an apocalyptic number.

303142251240 is a gapful number since it is divisible by the number (30) 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 303142251240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520218054720).

303142251240 is an abundant number, since it is smaller than the sum of its proper divisors (737293858200).

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

303142251240 is a wasteful number, since it uses less digits than its factorization.

303142251240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441224 (or 441217 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 303142251240 its reverse (42152241303), we get a palindrome (345294492543).

The spelling of 303142251240 in words is "three hundred three billion, one hundred forty-two million, two hundred fifty-one thousand, two hundred forty".