103210231081 has 2 divisors, whose sum is σ = 103210231082. Its totient is φ = 103210231080.

The previous prime is 103210231067. The next prime is 103210231127. The reversal of 103210231081 is 180132012301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68360808681 + 34849422400 = 261459^2 + 186680^2 .

It is a cyclic number.

It is not a de Polignac number, because 103210231081 - 2⁵ = 103210231049 is a prime.

It is a super-2 number, since 2×103210231081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103210231681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51605115540 + 51605115541.

It is an arithmetic number, because the mean of its divisors is an integer number (51605115541).

Almost surely, 2^103210231081 is an apocalyptic number.

It is an amenable number.

103210231081 is a deficient number, since it is larger than the sum of its proper divisors (1).

103210231081 is an equidigital number, since it uses as much as digits as its factorization.

103210231081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 103210231081 its reverse (180132012301), we get a palindrome (283342243382).

The spelling of 103210231081 in words is "one hundred three billion, two hundred ten million, two hundred thirty-one thousand, eighty-one".