12103515435 has 64 divisors (see below), whose sum is σ = 21715236864. Its totient is φ = 5706355200.

The previous prime is 12103515433. The next prime is 12103515439. The reversal of 12103515435 is 53451530121.

It is not a de Polignac number, because 12103515435 - 2¹ = 12103515433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103515433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1212565 + ... + 1222505.

It is an arithmetic number, because the mean of its divisors is an integer number (339300576).

Almost surely, 2^12103515435 is an apocalyptic number.

12103515435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12103515435 is a deficient number, since it is larger than the sum of its proper divisors (9611721429).

12103515435 is a wasteful number, since it uses less digits than its factorization.

12103515435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10164.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 12103515435 in words is "twelve billion, one hundred three million, five hundred fifteen thousand, four hundred thirty-five".