421011440402 has 32 divisors (see below), whose sum is σ = 725473929600. Its totient is φ = 179500641408.

The previous prime is 421011440371. The next prime is 421011440449. The reversal of 421011440402 is 204044110124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2243849 + ... + 2424227.

It is an arithmetic number, because the mean of its divisors is an integer number (22671060300).

Almost surely, 2^421011440402 is an apocalyptic number.

421011440402 is a deficient number, since it is larger than the sum of its proper divisors (304462489198).

421011440402 is a wasteful number, since it uses less digits than its factorization.

421011440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181250.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 421011440402 its reverse (204044110124), we get a palindrome (625055550526).

The spelling of 421011440402 in words is "four hundred twenty-one billion, eleven million, four hundred forty thousand, four hundred two".