103123133261 has 2 divisors, whose sum is σ = 103123133262. Its totient is φ = 103123133260.

The previous prime is 103123133231. The next prime is 103123133353. The reversal of 103123133261 is 162331321301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84352489225 + 18770644036 = 290435^2 + 137006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103123133261 is a prime.

It is a super-2 number, since 2×103123133261² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103123133261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103123133231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51561566630 + 51561566631.

It is an arithmetic number, because the mean of its divisors is an integer number (51561566631).

Almost surely, 2^103123133261 is an apocalyptic number.

It is an amenable number.

103123133261 is a deficient number, since it is larger than the sum of its proper divisors (1).

103123133261 is an equidigital number, since it uses as much as digits as its factorization.

103123133261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 103123133261 its reverse (162331321301), we get a palindrome (265454454562).

The spelling of 103123133261 in words is "one hundred three billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred sixty-one".