12103403553 has 12 divisors (see below), whose sum is σ = 17487192528. Its totient is φ = 8066859480.

The previous prime is 12103403527. The next prime is 12103403561. The reversal of 12103403553 is 35530430121.

12103403553 is a `hidden beast` number, since 1 + 2 + 103 + 4 + 0 + 3 + 553 = 666.

It is not a de Polignac number, because 12103403553 - 2⁸ = 12103403297 is a prime.

It is a super-3 number, since 3×12103403553³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12103404553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135675 + ... + 206432.

It is an arithmetic number, because the mean of its divisors is an integer number (1457266044).

Almost surely, 2^12103403553 is an apocalyptic number.

It is an amenable number.

12103403553 is a deficient number, since it is larger than the sum of its proper divisors (5383788975).

12103403553 is a wasteful number, since it uses less digits than its factorization.

12103403553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346044 (or 346041 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 12103403553 its reverse (35530430121), we get a palindrome (47633833674).

The spelling of 12103403553 in words is "twelve billion, one hundred three million, four hundred three thousand, five hundred fifty-three".