1020323034 has 128 divisors (see below), whose sum is σ = 2490497280. Its totient is φ = 308385792.

The previous prime is 1020322997. The next prime is 1020323039. The reversal of 1020323034 is 4303230201.

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

It is a junction number, because it is equal to n+sod(n) for n = 1020322998 and 1020323016.

It is not an unprimeable number, because it can be changed into a prime (1020323039) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3259662 + ... + 3259974.

It is an arithmetic number, because the mean of its divisors is an integer number (19457010).

Almost surely, 2^1020323034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020323034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245248640).

1020323034 is an abundant number, since it is smaller than the sum of its proper divisors (1470174246).

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

1020323034 is a wasteful number, since it uses less digits than its factorization.

1020323034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 455 counting only the distinct ones).

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

The square root of 1020323034 is about 31942.4957384360. The cubic root of 1020323034 is about 1006.7289641480.

Adding to 1020323034 its reverse (4303230201), we get a palindrome (5323553235).

The spelling of 1020323034 in words is "one billion, twenty million, three hundred twenty-three thousand, thirty-four".