12440434203 has 48 divisors (see below), whose sum is σ = 18597852000. Its totient is φ = 8009902080.

The previous prime is 12440434147. The next prime is 12440434213. The reversal of 12440434203 is 30243404421.

It is a happy number.

12440434203 is a `hidden beast` number, since 1 + 24 + 4 + 0 + 434 + 203 = 666.

It is not a de Polignac number, because 12440434203 - 2⁸ = 12440433947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12440434213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7673733 + ... + 7675353.

It is an arithmetic number, because the mean of its divisors is an integer number (387455250).

Almost surely, 2^12440434203 is an apocalyptic number.

12440434203 is a deficient number, since it is larger than the sum of its proper divisors (6157417797).

12440434203 is a wasteful number, since it uses less digits than its factorization.

12440434203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12440434203 its reverse (30243404421), we get a palindrome (42683838624).

The spelling of 12440434203 in words is "twelve billion, four hundred forty million, four hundred thirty-four thousand, two hundred three".