2231520203 has 8 divisors (see below), whose sum is σ = 2457138240. Its totient is φ = 2009694280.

The previous prime is 2231520197. The next prime is 2231520241. The reversal of 2231520203 is 3020251322.

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

It is not a de Polignac number, because 2231520203 - 2¹² = 2231516107 is a prime.

It is a super-3 number, since 3×2231520203³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231520103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946793 + ... + 949146.

It is an arithmetic number, because the mean of its divisors is an integer number (307142280).

Almost surely, 2^2231520203 is an apocalyptic number.

2231520203 is a deficient number, since it is larger than the sum of its proper divisors (225618037).

2231520203 is a wasteful number, since it uses less digits than its factorization.

2231520203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896057.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2231520203 is about 47238.9691144928. The cubic root of 2231520203 is about 1306.7733661033.

Adding to 2231520203 its reverse (3020251322), we get a palindrome (5251771525).

The spelling of 2231520203 in words is "two billion, two hundred thirty-one million, five hundred twenty thousand, two hundred three".