1421420321530 has 256 divisors, whose sum is σ = 3218642542080. Its totient is φ = 445132800000.

The previous prime is 1421420321501. The next prime is 1421420321551. The reversal of 1421420321530 is 351230241241.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 147124900 + ... + 147134560.

It is an arithmetic number, because the mean of its divisors is an integer number (12572822430).

Almost surely, 2^{1421420321530} is an apocalyptic number.

1421420321530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421420321530 is an abundant number, since it is smaller than the sum of its proper divisors (1797222220550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421420321530 is a wasteful number, since it uses less digits than its factorization.

1421420321530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9857.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 1421420321530 its reverse (351230241241), we get a palindrome (1772650562771).

The spelling of 1421420321530 in words is "one trillion, four hundred twenty-one billion, four hundred twenty million, three hundred twenty-one thousand, five hundred thirty".