103121503136552 has 16 divisors (see below), whose sum is σ = 195525321959700. Its totient is φ = 50981417280640.

The previous prime is 103121503136503. The next prime is 103121503136621. The reversal of 103121503136552 is 255631305121301.

It can be written as a sum of positive squares in 2 ways, for example, as 103104244008676 + 17259127876 = 10154026^2 + 131374^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72416785199 + ... + 72416786622.

Almost surely, 2^{103121503136552} is an apocalyptic number.

It is an amenable number.

103121503136552 is a deficient number, since it is larger than the sum of its proper divisors (92403818823148).

103121503136552 is a wasteful number, since it uses less digits than its factorization.

103121503136552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144833571916 (or 144833571912 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 38.

Adding to 103121503136552 its reverse (255631305121301), we get a palindrome (358752808257853).

The spelling of 103121503136552 in words is "one hundred three trillion, one hundred twenty-one billion, five hundred three million, one hundred thirty-six thousand, five hundred fifty-two".