1430020223421 has 32 divisors (see below), whose sum is σ = 1922266418688. Its totient is φ = 945599531520.

The previous prime is 1430020223413. The next prime is 1430020223431. The reversal of 1430020223421 is 1243220200341.

It is a happy number.

It is not a de Polignac number, because 1430020223421 - 2³ = 1430020223413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1430020223391 and 1430020223400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430020223431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246255100 + ... + 246260906.

It is an arithmetic number, because the mean of its divisors is an integer number (60070825584).

Almost surely, 2^{1430020223421} is an apocalyptic number.

It is an amenable number.

1430020223421 is a deficient number, since it is larger than the sum of its proper divisors (492246195267).

1430020223421 is a wasteful number, since it uses less digits than its factorization.

1430020223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1430020223421 its reverse (1243220200341), we get a palindrome (2673240423762).

The spelling of 1430020223421 in words is "one trillion, four hundred thirty billion, twenty million, two hundred twenty-three thousand, four hundred twenty-one".