1020321232 has 80 divisors (see below), whose sum is σ = 2437558272. Its totient is φ = 403752960.

The previous prime is 1020321221. The next prime is 1020321251. The reversal of 1020321232 is 2321230201.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 95857 + ... + 105967.

Almost surely, 2^1020321232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020321232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218779136).

1020321232 is an abundant number, since it is smaller than the sum of its proper divisors (1417237040).

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

1020321232 is a wasteful number, since it uses less digits than its factorization.

1020321232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10196 (or 10190 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1020321232 is about 31942.4675314854. The cubic root of 1020321232 is about 1006.7283714838.

Adding to 1020321232 its reverse (2321230201), we get a palindrome (3341551433).

The spelling of 1020321232 in words is "one billion, twenty million, three hundred twenty-one thousand, two hundred thirty-two".