1430144021 has 2 divisors, whose sum is σ = 1430144022. Its totient is φ = 1430144020.

The previous prime is 1430143991. The next prime is 1430144029. The reversal of 1430144021 is 1204410341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1005207025 + 424936996 = 31705^2 + 20614^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430144021 - 2¹⁰ = 1430142997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1430143984 and 1430144002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430144029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715072010 + 715072011.

It is an arithmetic number, because the mean of its divisors is an integer number (715072011).

Almost surely, 2^1430144021 is an apocalyptic number.

It is an amenable number.

1430144021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430144021 is an equidigital number, since it uses as much as digits as its factorization.

1430144021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1430144021 is about 37817.2450212863. The cubic root of 1430144021 is about 1126.6609923017.

Adding to 1430144021 its reverse (1204410341), we get a palindrome (2634554362).

The spelling of 1430144021 in words is "one billion, four hundred thirty million, one hundred forty-four thousand, twenty-one".