1020423430 has 32 divisors (see below), whose sum is σ = 1987479648. Its totient is φ = 374976000.

The previous prime is 1020423409. The next prime is 1020423449. The reversal of 1020423430 is 343240201.

1020423430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1020423398 and 1020423407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8830 + ... + 46030.

It is an arithmetic number, because the mean of its divisors is an integer number (62108739).

Almost surely, 2^1020423430 is an apocalyptic number.

1020423430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020423430 is a deficient number, since it is larger than the sum of its proper divisors (967056218).

1020423430 is a wasteful number, since it uses less digits than its factorization.

1020423430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37432.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1020423430 is about 31944.0672112992. The cubic root of 1020423430 is about 1006.7619825297.

Adding to 1020423430 its reverse (343240201), we get a palindrome (1363663631).

The spelling of 1020423430 in words is "one billion, twenty million, four hundred twenty-three thousand, four hundred thirty".