1020323130 has 64 divisors (see below), whose sum is σ = 2518580736. Its totient is φ = 264384000.

The previous prime is 1020323093. The next prime is 1020323131. The reversal of 1020323130 is 313230201.

It is a super-2 number, since 2×1020323130² = 2082118579225993800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1020323131) 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, 331800 + ... + 334860.

It is an arithmetic number, because the mean of its divisors is an integer number (39352824).

Almost surely, 2^1020323130 is an apocalyptic number.

1020323130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020323130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259290368).

1020323130 is an abundant number, since it is smaller than the sum of its proper divisors (1498257606).

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

1020323130 is a wasteful number, since it uses less digits than its factorization.

1020323130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1020323130 is about 31942.4972411363. The cubic root of 1020323130 is about 1006.7289957217.

Adding to 1020323130 its reverse (313230201), we get a palindrome (1333553331).

It can be divided in two parts, 10203 and 23130, that added together give a palindrome (33333).

The spelling of 1020323130 in words is "one billion, twenty million, three hundred twenty-three thousand, one hundred thirty".