2103431117 has 2 divisors, whose sum is σ = 2103431118. Its totient is φ = 2103431116.

The previous prime is 2103431101. The next prime is 2103431123. The reversal of 2103431117 is 7111343012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1083331396 + 1020099721 = 32914^2 + 31939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103431117 - 2⁴ = 2103431101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2103431092 and 2103431101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103431147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051715558 + 1051715559.

It is an arithmetic number, because the mean of its divisors is an integer number (1051715559).

Almost surely, 2^2103431117 is an apocalyptic number.

It is an amenable number.

2103431117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103431117 is an equidigital number, since it uses as much as digits as its factorization.

2103431117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2103431117 is about 45863.1782261108. The cubic root of 2103431117 is about 1281.2762167564.

Adding to 2103431117 its reverse (7111343012), we get a palindrome (9214774129).

The spelling of 2103431117 in words is "two billion, one hundred three million, four hundred thirty-one thousand, one hundred seventeen".