12103111501616 has 40 divisors (see below), whose sum is σ = 23845282595904. Its totient is φ = 5949835594560.

The previous prime is 12103111501589. The next prime is 12103111501619. The reversal of 12103111501616 is 61610511130121.

It is a super-2 number, since 2×12103111501616² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12103111501619) 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, 10233050 + ... + 11354361.

Almost surely, 2^{12103111501616} is an apocalyptic number.

12103111501616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12103111501616 is a deficient number, since it is larger than the sum of its proper divisors (11742171094288).

12103111501616 is a wasteful number, since it uses less digits than its factorization.

12103111501616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21588009 (or 21588003 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 29.

Adding to 12103111501616 its reverse (61610511130121), we get a palindrome (73713622631737).

The spelling of 12103111501616 in words is "twelve trillion, one hundred three billion, one hundred eleven million, five hundred one thousand, six hundred sixteen".