12423220402 has 8 divisors (see below), whose sum is σ = 18709073712. Its totient is φ = 6186862500.

The previous prime is 12423220387. The next prime is 12423220421. The reversal of 12423220402 is 20402232421.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12373224 + ... + 12374227.

It is an arithmetic number, because the mean of its divisors is an integer number (2338634214).

Almost surely, 2^12423220402 is an apocalyptic number.

12423220402 is a deficient number, since it is larger than the sum of its proper divisors (6285853310).

12423220402 is a wasteful number, since it uses less digits than its factorization.

12423220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24747704.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12423220402 its reverse (20402232421), we get a palindrome (32825452823).

The spelling of 12423220402 in words is "twelve billion, four hundred twenty-three million, two hundred twenty thousand, four hundred two".