12245402434 has 4 divisors (see below), whose sum is σ = 18368103654. Its totient is φ = 6122701216.

The previous prime is 12245402371. The next prime is 12245402461. The reversal of 12245402434 is 43420454221.

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

It can be written as a sum of positive squares in only one way, i.e., 12144701209 + 100701225 = 110203^2 + 10035^2 .

It is a super-2 number, since 2×12245402434² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12245402396 and 12245402405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3061350607 + ... + 3061350610.

Almost surely, 2^12245402434 is an apocalyptic number.

12245402434 is a deficient number, since it is larger than the sum of its proper divisors (6122701220).

12245402434 is an equidigital number, since it uses as much as digits as its factorization.

12245402434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6122701219.

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

Adding to 12245402434 its reverse (43420454221), we get a palindrome (55665856655).

The spelling of 12245402434 in words is "twelve billion, two hundred forty-five million, four hundred two thousand, four hundred thirty-four".