1020121330 has 8 divisors (see below), whose sum is σ = 1836218412. Its totient is φ = 408048528.

The previous prime is 1020121307. The next prime is 1020121367. The reversal of 1020121330 is 331210201.

It can be written as a sum of positive squares in 2 ways, for example, as 1020099721 + 21609 = 31939^2 + 147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1020121330.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 51006057 + ... + 51006076.

Almost surely, 2^1020121330 is an apocalyptic number.

1020121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020121330 is a deficient number, since it is larger than the sum of its proper divisors (816097082).

1020121330 is a wasteful number, since it uses less digits than its factorization.

1020121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102012140.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1020121330 is about 31939.3382836902. The cubic root of 1020121330 is about 1006.6626208971.

Adding to 1020121330 its reverse (331210201), we get a palindrome (1351331531).

The spelling of 1020121330 in words is "one billion, twenty million, one hundred twenty-one thousand, three hundred thirty".