2103631 has 12 divisors (see below), whose sum is σ = 2320920. Its totient is φ = 1904000.

The previous prime is 2103617. The next prime is 2103653. The reversal of 2103631 is 1363012.

It is not a de Polignac number, because 2103631 - 2⁷ = 2103503 is a prime.

It is a super-2 number, since 2×2103631² = 8850526768322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103601) 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, 8256 + ... + 8506.

It is an arithmetic number, because the mean of its divisors is an integer number (193410).

2^2103631 is an apocalyptic number.

2103631 is a deficient number, since it is larger than the sum of its proper divisors (217289).

2103631 is a wasteful number, since it uses less digits than its factorization.

2103631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 297 counting only the distinct ones).

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

The square root of 2103631 is about 1450.3899475658. The cubic root of 2103631 is about 128.1316800800.

Adding to 2103631 its reverse (1363012), we get a palindrome (3466643).

The spelling of 2103631 in words is "two million, one hundred three thousand, six hundred thirty-one".