12434020203 has 16 divisors (see below), whose sum is σ = 18123008256. Its totient is φ = 7520286240.

The previous prime is 12434020199. The next prime is 12434020273. The reversal of 12434020203 is 30202043421.

It is not a de Polignac number, because 12434020203 - 2² = 12434020199 is a prime.

It is a super-2 number, since 2×12434020203² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12434020203.

It is not an unprimeable number, because it can be changed into a prime (12434020273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370776 + ... + 402917.

It is an arithmetic number, because the mean of its divisors is an integer number (1132688016).

Almost surely, 2^12434020203 is an apocalyptic number.

12434020203 is a deficient number, since it is larger than the sum of its proper divisors (5688988053).

12434020203 is a wasteful number, since it uses less digits than its factorization.

12434020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774194.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12434020203 its reverse (30202043421), we get a palindrome (42636063624).

The spelling of 12434020203 in words is "twelve billion, four hundred thirty-four million, twenty thousand, two hundred three".