1023321432 has 64 divisors (see below), whose sum is σ = 3002814720. Its totient is φ = 284473728.

The previous prime is 1023321389. The next prime is 1023321433. The reversal of 1023321432 is 2341233201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1023321399 and 1023321408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023321433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76098 + ... + 88529.

It is an arithmetic number, because the mean of its divisors is an integer number (46918980).

Almost surely, 2^1023321432 is an apocalyptic number.

1023321432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023321432 is an abundant number, since it is smaller than the sum of its proper divisors (1979493288).

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

1023321432 is a wasteful number, since it uses less digits than its factorization.

1023321432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164680 (or 164676 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1023321432 is about 31989.3956179231. The cubic root of 1023321432 is about 1007.7141495453.

Adding to 1023321432 its reverse (2341233201), we get a palindrome (3364554633).

The spelling of 1023321432 in words is "one billion, twenty-three million, three hundred twenty-one thousand, four hundred thirty-two".