1021535330 has 16 divisors (see below), whose sum is σ = 1839660984. Its totient is φ = 408414720.

The previous prime is 1021535329. The next prime is 1021535351. The reversal of 1021535330 is 335351201.

1021535330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 857259841 + 164275489 = 29279^2 + 12817^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021535296 and 1021535305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2447 + ... + 45266.

Almost surely, 2^1021535330 is an apocalyptic number.

1021535330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021535330 is a deficient number, since it is larger than the sum of its proper divisors (818125654).

1021535330 is a wasteful number, since it uses less digits than its factorization.

1021535330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49861.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1021535330 is about 31961.4663305675. The cubic root of 1021535330 is about 1007.1275210802.

Adding to 1021535330 its reverse (335351201), we get a palindrome (1356886531).

The spelling of 1021535330 in words is "one billion, twenty-one million, five hundred thirty-five thousand, three hundred thirty".