1020343330 has 16 divisors (see below), whose sum is σ = 1839136824. Its totient is φ = 407577600.

The previous prime is 1020343277. The next prime is 1020343361. The reversal of 1020343330 is 333430201.

It can be written as a sum of positive squares in 4 ways, for example, as 947223729 + 73119601 = 30777^2 + 8551^2 .

It is a super-2 number, since 2×1020343330² = 2082201022150977800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020343298 and 1020343307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62271 + ... + 76930.

Almost surely, 2^1020343330 is an apocalyptic number.

1020343330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020343330 is a deficient number, since it is larger than the sum of its proper divisors (818793494).

1020343330 is a wasteful number, since it uses less digits than its factorization.

1020343330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139941.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 1020343330 is about 31942.8134327582. The cubic root of 1020343330 is about 1006.7356393005.

Adding to 1020343330 its reverse (333430201), we get a palindrome (1353773531).

The spelling of 1020343330 in words is "one billion, twenty million, three hundred forty-three thousand, three hundred thirty".