2103505320529 has 2 divisors, whose sum is σ = 2103505320530. Its totient is φ = 2103505320528.

The previous prime is 2103505320523. The next prime is 2103505320569. The reversal of 2103505320529 is 9250235053012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1875193368129 + 228311952400 = 1369377^2 + 477820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103505320529 is a prime.

It is a super-2 number, since 2×2103505320529² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2103505320523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051752660264 + 1051752660265.

It is an arithmetic number, because the mean of its divisors is an integer number (1051752660265).

Almost surely, 2^{2103505320529} is an apocalyptic number.

It is an amenable number.

2103505320529 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103505320529 is an equidigital number, since it uses as much as digits as its factorization.

2103505320529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 2103505320529 in words is "two trillion, one hundred three billion, five hundred five million, three hundred twenty thousand, five hundred twenty-nine".