103124210261 has 2 divisors, whose sum is σ = 103124210262. Its totient is φ = 103124210260.

The previous prime is 103124210257. The next prime is 103124210297. The reversal of 103124210261 is 162012421301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55645979236 + 47478231025 = 235894^2 + 217895^2 .

It is a cyclic number.

It is not a de Polignac number, because 103124210261 - 2² = 103124210257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103124210201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51562105130 + 51562105131.

It is an arithmetic number, because the mean of its divisors is an integer number (51562105131).

Almost surely, 2^103124210261 is an apocalyptic number.

It is an amenable number.

103124210261 is a deficient number, since it is larger than the sum of its proper divisors (1).

103124210261 is an equidigital number, since it uses as much as digits as its factorization.

103124210261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 103124210261 its reverse (162012421301), we get a palindrome (265136631562).

The spelling of 103124210261 in words is "one hundred three billion, one hundred twenty-four million, two hundred ten thousand, two hundred sixty-one".