203420132444 has 24 divisors (see below), whose sum is σ = 356875785840. Its totient is φ = 101455853184.

The previous prime is 203420132413. The next prime is 203420132537. The reversal of 203420132444 is 444231024302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3639542 + ... + 3695010.

It is an arithmetic number, because the mean of its divisors is an integer number (14869824410).

Almost surely, 2^203420132444 is an apocalyptic number.

It is an amenable number.

203420132444 is a deficient number, since it is larger than the sum of its proper divisors (153455653396).

203420132444 is a wasteful number, since it uses less digits than its factorization.

203420132444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57749 (or 57747 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 203420132444 its reverse (444231024302), we get a palindrome (647651156746).

The spelling of 203420132444 in words is "two hundred three billion, four hundred twenty million, one hundred thirty-two thousand, four hundred forty-four".