1023231320 has 32 divisors (see below), whose sum is σ = 2423444400. Its totient is φ = 387750528.

The previous prime is 1023231289. The next prime is 1023231323. The reversal of 1023231320 is 231323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023231323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672419 + ... + 673938.

Almost surely, 2^1023231320 is an apocalyptic number.

1023231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023231320 is an abundant number, since it is smaller than the sum of its proper divisors (1400213080).

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

1023231320 is a wasteful number, since it uses less digits than its factorization.

1023231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346387 (or 1346383 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1023231320 is about 31987.9871201675. The cubic root of 1023231320 is about 1007.6845694609.

Adding to 1023231320 its reverse (231323201), we get a palindrome (1254554521).

The spelling of 1023231320 in words is "one billion, twenty-three million, two hundred thirty-one thousand, three hundred twenty".