421131423002 has 8 divisors (see below), whose sum is σ = 647104381812. Its totient is φ = 205429962400.

The previous prime is 421131422993. The next prime is 421131423007. The reversal of 421131423002 is 200324131124.

It can be written as a sum of positive squares in 2 ways, for example, as 363161711641 + 57969711361 = 602629^2 + 240769^2 .

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 (421131423007) by changing a digit.

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, 2567874449 + ... + 2567874612.

Almost surely, 2^421131423002 is an apocalyptic number.

421131423002 is a deficient number, since it is larger than the sum of its proper divisors (225972958810).

421131423002 is a wasteful number, since it uses less digits than its factorization.

421131423002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135749104.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 421131423002 its reverse (200324131124), we get a palindrome (621455554126).

The spelling of 421131423002 in words is "four hundred twenty-one billion, one hundred thirty-one million, four hundred twenty-three thousand, two".