1021143330 has 48 divisors (see below), whose sum is σ = 2681283384. Its totient is φ = 269606400.

The previous prime is 1021143311. The next prime is 1021143341. The reversal of 1021143330 is 333411201.

It can be written as a sum of positive squares in 4 ways, for example, as 1020227481 + 915849 = 31941^2 + 957^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47079 + ... + 65258.

Almost surely, 2^1021143330 is an apocalyptic number.

1021143330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021143330 is an abundant number, since it is smaller than the sum of its proper divisors (1660140054).

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

1021143330 is a wasteful number, since it uses less digits than its factorization.

1021143330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112451 (or 112448 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1021143330 is about 31955.3333576729. Note that the first 4 decimals coincide. The cubic root of 1021143330 is about 1006.9986808641.

Adding to 1021143330 its reverse (333411201), we get a palindrome (1354554531).

The spelling of 1021143330 in words is "one billion, twenty-one million, one hundred forty-three thousand, three hundred thirty".