421431050402 has 8 divisors (see below), whose sum is σ = 632149376412. Its totient is φ = 210714591600.

The previous prime is 421431050347. The next prime is 421431050441. The reversal of 421431050402 is 204050134124.

It can be written as a sum of positive squares in 2 ways, for example, as 379479408361 + 41951642041 = 616019^2 + 204821^2 .

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, 488252 + ... + 1039832.

Almost surely, 2^421431050402 is an apocalyptic number.

421431050402 is a deficient number, since it is larger than the sum of its proper divisors (210718326010).

421431050402 is a wasteful number, since it uses less digits than its factorization.

421431050402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933604.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 421431050402 its reverse (204050134124), we get a palindrome (625481184526).

The spelling of 421431050402 in words is "four hundred twenty-one billion, four hundred thirty-one million, fifty thousand, four hundred two".