2103031231 has 12 divisors (see below), whose sum is σ = 2436882672. Its totient is φ = 1777873536.

The previous prime is 2103031213. The next prime is 2103031247. The reversal of 2103031231 is 1321303012.

It is a de Polignac number, because none of the positive numbers 2^k-2103031231 is a prime.

It is a super-2 number, since 2×2103031231² = 8845480717122750722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103031201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9115 + ... + 65491.

It is an arithmetic number, because the mean of its divisors is an integer number (203073556).

Almost surely, 2^2103031231 is an apocalyptic number.

2103031231 is a deficient number, since it is larger than the sum of its proper divisors (333851441).

2103031231 is an frugal number, since it uses more digits than its factorization.

2103031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56530 (or 56457 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2103031231 is about 45858.8184649365. The cubic root of 2103031231 is about 1281.1950165863.

Adding to 2103031231 its reverse (1321303012), we get a palindrome (3424334243).

The spelling of 2103031231 in words is "two billion, one hundred three million, thirty-one thousand, two hundred thirty-one".