303145034220 has 384 divisors, whose sum is σ = 1092268800000. Its totient is φ = 68366757888.

The previous prime is 303145034207. The next prime is 303145034237. The reversal of 303145034220 is 22430541303.

303145034220 is a `hidden beast` number, since 3 + 0 + 314 + 5 + 0 + 342 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 288984256 + ... + 288985304.

It is an arithmetic number, because the mean of its divisors is an integer number (2844450000).

Almost surely, 2^303145034220 is an apocalyptic number.

303145034220 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 303145034220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546134400000).

303145034220 is an abundant number, since it is smaller than the sum of its proper divisors (789123765780).

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

303145034220 is a wasteful number, since it uses less digits than its factorization.

303145034220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 303145034220 its reverse (22430541303), we get a palindrome (325575575523).

The spelling of 303145034220 in words is "three hundred three billion, one hundred forty-five million, thirty-four thousand, two hundred twenty".