12103551235 has 4 divisors (see below), whose sum is σ = 14524261488. Its totient is φ = 9682840984.

The previous prime is 12103551203. The next prime is 12103551307. The reversal of 12103551235 is 53215530121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12103551235 - 2⁵ = 12103551203 is a prime.

It is a Duffinian number.

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, 1210355119 + ... + 1210355128.

It is an arithmetic number, because the mean of its divisors is an integer number (3631065372).

Almost surely, 2^12103551235 is an apocalyptic number.

12103551235 is a deficient number, since it is larger than the sum of its proper divisors (2420710253).

12103551235 is an equidigital number, since it uses as much as digits as its factorization.

12103551235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420710252.

The product of its (nonzero) digits is 4500, while the sum is 28.

It can be divided in two parts, 1210 and 3551235, that added together give a triangular number (3552445 = T₂₆₆₅).

The spelling of 12103551235 in words is "twelve billion, one hundred three million, five hundred fifty-one thousand, two hundred thirty-five".