1421020302404 has 12 divisors (see below), whose sum is σ = 2486808187500. Its totient is φ = 710503677408.

The previous prime is 1421020302379. The next prime is 1421020302467. The reversal of 1421020302404 is 4042030201241.

It can be written as a sum of positive squares in 2 ways, for example, as 847592739904 + 573427562500 = 920648^2 + 757250^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1421020302404.

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, 1106579 + ... + 2016570.

It is an arithmetic number, because the mean of its divisors is an integer number (207234015625).

Almost surely, 2^{1421020302404} is an apocalyptic number.

It is an amenable number.

1421020302404 is a deficient number, since it is larger than the sum of its proper divisors (1065787885096).

1421020302404 is a wasteful number, since it uses less digits than its factorization.

1421020302404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236902 (or 3236900 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1421020302404 its reverse (4042030201241), we get a palindrome (5463050503645).

The spelling of 1421020302404 in words is "one trillion, four hundred twenty-one billion, twenty million, three hundred two thousand, four hundred four".