20301244140 has 48 divisors (see below), whose sum is σ = 57053283840. Its totient is φ = 5393684160.

The previous prime is 20301244079. The next prime is 20301244153. The reversal of 20301244140 is 4144210302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608010 + ... + 640529.

It is an arithmetic number, because the mean of its divisors is an integer number (1188610080).

Almost surely, 2^20301244140 is an apocalyptic number.

20301244140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20301244140 is an abundant number, since it is smaller than the sum of its proper divisors (36752039700).

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

20301244140 is a wasteful number, since it uses less digits than its factorization.

20301244140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248822 (or 1248820 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20301244140 its reverse (4144210302), we get a palindrome (24445454442).

The spelling of 20301244140 in words is "twenty billion, three hundred one million, two hundred forty-four thousand, one hundred forty".