2103431045 has 16 divisors (see below), whose sum is σ = 2616831360. Its totient is φ = 1621187904.

The previous prime is 2103431041. The next prime is 2103431047. The reversal of 2103431045 is 5401343012.

It is a cyclic number.

It is not a de Polignac number, because 2103431045 - 2² = 2103431041 is a prime.

It is a super-2 number, since 2×2103431045² = 8848844322139584050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2103431045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103431041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52184 + ... + 83246.

It is an arithmetic number, because the mean of its divisors is an integer number (163551960).

Almost surely, 2^2103431045 is an apocalyptic number.

It is an amenable number.

2103431045 is a deficient number, since it is larger than the sum of its proper divisors (513400315).

2103431045 is a wasteful number, since it uses less digits than its factorization.

2103431045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31564.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2103431045 is about 45863.1774411673. The cubic root of 2103431045 is about 1281.2762021372.

Adding to 2103431045 its reverse (5401343012), we get a palindrome (7504774057).

The spelling of 2103431045 in words is "two billion, one hundred three million, four hundred thirty-one thousand, forty-five".