103540121245 has 8 divisors (see below), whose sum is σ = 135543431520. Its totient is φ = 75301906320.

The previous prime is 103540121213. The next prime is 103540121249. The reversal of 103540121245 is 542121045301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103540121245 - 2⁵ = 103540121213 is a prime.

It is a super-3 number, since 3×103540121245³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103540121249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941273775 + ... + 941273884.

It is an arithmetic number, because the mean of its divisors is an integer number (16942928940).

Almost surely, 2^103540121245 is an apocalyptic number.

It is an amenable number.

103540121245 is a deficient number, since it is larger than the sum of its proper divisors (32003310275).

103540121245 is a wasteful number, since it uses less digits than its factorization.

103540121245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882547675.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 103540121245 its reverse (542121045301), we get a palindrome (645661166546).

It can be divided in two parts, 103540 and 121245, that added together give a triangular number (224785 = T₆₇₀).

The spelling of 103540121245 in words is "one hundred three billion, five hundred forty million, one hundred twenty-one thousand, two hundred forty-five".