12402023042 has 8 divisors (see below), whose sum is σ = 18643742796. Its totient is φ = 6187442112.

The previous prime is 12402023041. The next prime is 12402023069. The reversal of 12402023042 is 24032020421.

It can be written as a sum of positive squares in 2 ways, for example, as 12022903201 + 379119841 = 109649^2 + 19471^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12402023041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6783563 + ... + 6785390.

Almost surely, 2^12402023042 is an apocalyptic number.

12402023042 is a deficient number, since it is larger than the sum of its proper divisors (6241719754).

12402023042 is a wasteful number, since it uses less digits than its factorization.

12402023042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13569412.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12402023042 its reverse (24032020421), we get a palindrome (36434043463).

The spelling of 12402023042 in words is "twelve billion, four hundred two million, twenty-three thousand, forty-two".