103100202021281 has 2 divisors, whose sum is σ = 103100202021282. Its totient is φ = 103100202021280.

The previous prime is 103100202021263. The next prime is 103100202021343. The reversal of 103100202021281 is 182120202001301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103089094758400 + 11107262881 = 10153280^2 + 105391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103100202021281 is a prime.

It is a super-2 number, since 2×103100202021281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103100202021181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51550101010640 + 51550101010641.

It is an arithmetic number, because the mean of its divisors is an integer number (51550101010641).

Almost surely, 2^{103100202021281} is an apocalyptic number.

It is an amenable number.

103100202021281 is a deficient number, since it is larger than the sum of its proper divisors (1).

103100202021281 is an equidigital number, since it uses as much as digits as its factorization.

103100202021281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 103100202021281 its reverse (182120202001301), we get a palindrome (285220404022582).

The spelling of 103100202021281 in words is "one hundred three trillion, one hundred billion, two hundred two million, twenty-one thousand, two hundred eighty-one".