2103431101 has 2 divisors, whose sum is σ = 2103431102. Its totient is φ = 2103431100.

The previous prime is 2103431047. The next prime is 2103431117. The reversal of 2103431101 is 1011343012.

It is an a-pointer prime, because the next prime (2103431117) can be obtained adding 2103431101 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1150227225 + 953203876 = 33915^2 + 30874^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103431101 - 2²⁹ = 1566560189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103431191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051715550 + 1051715551.

It is an arithmetic number, because the mean of its divisors is an integer number (1051715551).

Almost surely, 2^2103431101 is an apocalyptic number.

It is an amenable number.

2103431101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103431101 is an equidigital number, since it uses as much as digits as its factorization.

2103431101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2103431101 is about 45863.1780516789. The cubic root of 2103431101 is about 1281.2762135077.

Adding to 2103431101 its reverse (1011343012), we get a palindrome (3114774113).

The spelling of 2103431101 in words is "two billion, one hundred three million, four hundred thirty-one thousand, one hundred one".