103100561512 has 16 divisors (see below), whose sum is σ = 208183826340. Its totient is φ = 47584874496.

The previous prime is 103100561503. The next prime is 103100561527. The reversal of 103100561512 is 215165001301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77142840516 + 25957720996 = 277746^2 + 161114^2 .

It is a super-2 number, since 2×103100561512² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495675673 + ... + 495675880.

Almost surely, 2^103100561512 is an apocalyptic number.

It is an amenable number.

103100561512 is an abundant number, since it is smaller than the sum of its proper divisors (105083264828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103100561512 is a wasteful number, since it uses less digits than its factorization.

103100561512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991351572 (or 991351568 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 103100561512 its reverse (215165001301), we get a palindrome (318265562813).

The spelling of 103100561512 in words is "one hundred three billion, one hundred million, five hundred sixty-one thousand, five hundred twelve".