1321030430 has 16 divisors (see below), whose sum is σ = 2383230384. Its totient is φ = 527217600.

The previous prime is 1321030429. The next prime is 1321030439. The reversal of 1321030430 is 340301231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1321030399 and 1321030408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321030439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144671 + ... + 153530.

It is an arithmetic number, because the mean of its divisors is an integer number (148951899).

Almost surely, 2^1321030430 is an apocalyptic number.

1321030430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321030430 is a deficient number, since it is larger than the sum of its proper divisors (1062199954).

1321030430 is a wasteful number, since it uses less digits than its factorization.

1321030430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298651.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1321030430 is about 36345.9823089155. The cubic root of 1321030430 is about 1097.2466761039.

Adding to 1321030430 its reverse (340301231), we get a palindrome (1661331661).

The spelling of 1321030430 in words is "one billion, three hundred twenty-one million, thirty thousand, four hundred thirty".