103242613261 has 4 divisors (see below), whose sum is σ = 103254766524. Its totient is φ = 103230460000.

The previous prime is 103242613241. The next prime is 103242613267. The reversal of 103242613261 is 162316242301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17961092361 + 85281520900 = 134019^2 + 292030^2 .

It is a cyclic number.

It is not a de Polignac number, because 103242613261 - 2²¹ = 103240516109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103242613267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063880 + ... + 6080881.

It is an arithmetic number, because the mean of its divisors is an integer number (25813691631).

Almost surely, 2^103242613261 is an apocalyptic number.

It is an amenable number.

103242613261 is a deficient number, since it is larger than the sum of its proper divisors (12153263).

103242613261 is an equidigital number, since it uses as much as digits as its factorization.

103242613261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12153262.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 103242613261 its reverse (162316242301), we get a palindrome (265558855562).

The spelling of 103242613261 in words is "one hundred three billion, two hundred forty-two million, six hundred thirteen thousand, two hundred sixty-one".