305153542020 has 48 divisors (see below), whose sum is σ = 862268742720. Its totient is φ = 80627723136.

The previous prime is 305153541983. The next prime is 305153542037. The reversal of 305153542020 is 20245351503.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23323242 + ... + 23336321.

It is an arithmetic number, because the mean of its divisors is an integer number (17963932140).

Almost surely, 2^305153542020 is an apocalyptic number.

305153542020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305153542020 is an abundant number, since it is smaller than the sum of its proper divisors (557115200700).

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

305153542020 is a wasteful number, since it uses less digits than its factorization.

305153542020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46659684 (or 46659682 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 305153542020 its reverse (20245351503), we get a palindrome (325398893523).

The spelling of 305153542020 in words is "three hundred five billion, one hundred fifty-three million, five hundred forty-two thousand, twenty".