2103312553 has 2 divisors, whose sum is σ = 2103312554. Its totient is φ = 2103312552.

The previous prime is 2103312529. The next prime is 2103312611. The reversal of 2103312553 is 3552133012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1967543449 + 135769104 = 44357^2 + 11652^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103312553 - 2¹⁷ = 2103181481 is a prime.

It is not a weakly prime, because it can be changed into another prime (2103312503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051656276 + 1051656277.

It is an arithmetic number, because the mean of its divisors is an integer number (1051656277).

Almost surely, 2^2103312553 is an apocalyptic number.

It is an amenable number.

2103312553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103312553 is an equidigital number, since it uses as much as digits as its factorization.

2103312553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 2103312553 is about 45861.8856241215. The cubic root of 2103312553 is about 1281.2521424259.

Adding to 2103312553 its reverse (3552133012), we get a palindrome (5655445565).

The spelling of 2103312553 in words is "two billion, one hundred three million, three hundred twelve thousand, five hundred fifty-three".