1021242320 has 240 divisors, whose sum is σ = 2955667968. Its totient is φ = 326430720.

The previous prime is 1021242311. The next prime is 1021242349. The reversal of 1021242320 is 232421201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4237400 + ... + 4237640.

Almost surely, 2^1021242320 is an apocalyptic number.

1021242320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021242320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477833984).

1021242320 is an abundant number, since it is smaller than the sum of its proper divisors (1934425648).

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

1021242320 is a wasteful number, since it uses less digits than its factorization.

1021242320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1021242320 is about 31956.8822008656. The cubic root of 1021242320 is about 1007.0312194169.

Adding to 1021242320 its reverse (232421201), we get a palindrome (1253663521).

The spelling of 1021242320 in words is "one billion, twenty-one million, two hundred forty-two thousand, three hundred twenty".