2003131855 has 8 divisors (see below), whose sum is σ = 2413336464. Its totient is φ = 1596120000.

The previous prime is 2003131853. The next prime is 2003131861. The reversal of 2003131855 is 5581313002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2003131855 - 2¹ = 2003131853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003131853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796806 + ... + 799315.

It is an arithmetic number, because the mean of its divisors is an integer number (301667058).

Almost surely, 2^2003131855 is an apocalyptic number.

2003131855 is a deficient number, since it is larger than the sum of its proper divisors (410204609).

2003131855 is a wasteful number, since it uses less digits than its factorization.

2003131855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596377.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 2003131855 is about 44756.3610562789. The cubic root of 2003131855 is about 1260.5783552566.

Adding to 2003131855 its reverse (5581313002), we get a palindrome (7584444857).

The spelling of 2003131855 in words is "two billion, three million, one hundred thirty-one thousand, eight hundred fifty-five".