203020012144 has 10 divisors (see below), whose sum is σ = 393351273560. Its totient is φ = 101510006064.

The previous prime is 203020012123. The next prime is 203020012147. The reversal of 203020012144 is 441210020302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203020012147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6344375364 + ... + 6344375395.

It is an arithmetic number, because the mean of its divisors is an integer number (39335127356).

Almost surely, 2^203020012144 is an apocalyptic number.

It is an amenable number.

203020012144 is a deficient number, since it is larger than the sum of its proper divisors (190331261416).

203020012144 is a wasteful number, since it uses less digits than its factorization.

203020012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12688750767 (or 12688750761 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 203020012144 its reverse (441210020302), we get a palindrome (644230032446).

The spelling of 203020012144 in words is "two hundred three billion, twenty million, twelve thousand, one hundred forty-four".