12434345402 has 8 divisors (see below), whose sum is σ = 18656719956. Its totient is φ = 6215438752.

The previous prime is 12434345387. The next prime is 12434345437. The reversal of 12434345402 is 20454343421.

12434345402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12164104681 + 270240721 = 110291^2 + 16439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12434345402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857993 + ... + 872364.

Almost surely, 2^12434345402 is an apocalyptic number.

12434345402 is a deficient number, since it is larger than the sum of its proper divisors (6222374554).

12434345402 is a wasteful number, since it uses less digits than its factorization.

12434345402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733952.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 12434345402 its reverse (20454343421), we get a palindrome (32888688823).

The spelling of 12434345402 in words is "twelve billion, four hundred thirty-four million, three hundred forty-five thousand, four hundred two".