1020323430 has 48 divisors (see below), whose sum is σ = 3031820064. Its totient is φ = 233216640.

The previous prime is 1020323413. The next prime is 1020323453. The reversal of 1020323430 is 343230201.

1020323430 is a `hidden beast` number, since 10 + 203 + 23 + 430 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 809151 + ... + 810410.

It is an arithmetic number, because the mean of its divisors is an integer number (63162918).

Almost surely, 2^1020323430 is an apocalyptic number.

1020323430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020323430 is an abundant number, since it is smaller than the sum of its proper divisors (2011496634).

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

1020323430 is a wasteful number, since it uses less digits than its factorization.

1020323430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619581 (or 1619578 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1020323430 is about 31942.5019370744. The cubic root of 1020323430 is about 1006.7290943893.

Adding to 1020323430 its reverse (343230201), we get a palindrome (1363553631).

It can be divided in two parts, 10203 and 23430, that added together give a palindrome (33633).

The spelling of 1020323430 in words is "one billion, twenty million, three hundred twenty-three thousand, four hundred thirty".