12534242242 has 16 divisors (see below), whose sum is σ = 19622512512. Its totient is φ = 5993507520.

The previous prime is 12534242209. The next prime is 12534242263. The reversal of 12534242242 is 24224243521.

It is a happy number.

It is a super-2 number, since 2×12534242242² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253642 + ... + 299002.

It is an arithmetic number, because the mean of its divisors is an integer number (1226407032).

Almost surely, 2^12534242242 is an apocalyptic number.

12534242242 is a deficient number, since it is larger than the sum of its proper divisors (7088270270).

12534242242 is a wasteful number, since it uses less digits than its factorization.

12534242242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51393.

The product of its digits is 30720, while the sum is 31.

Adding to 12534242242 its reverse (24224243521), we get a palindrome (36758485763).

The spelling of 12534242242 in words is "twelve billion, five hundred thirty-four million, two hundred forty-two thousand, two hundred forty-two".