1231012330 has 32 divisors (see below), whose sum is σ = 2384646480. Its totient is φ = 455838720.

The previous prime is 1231012309. The next prime is 1231012333. The reversal of 1231012330 is 332101321.

It can be written as a sum of positive squares in 8 ways, for example, as 195524289 + 1035488041 = 13983^2 + 32179^2 .

It is a super-2 number, since 2×1231012330² = 3030782713224057800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231012333) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 48985 + ... + 69724.

Almost surely, 2^1231012330 is an apocalyptic number.

1231012330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231012330 is a deficient number, since it is larger than the sum of its proper divisors (1153634150).

1231012330 is a wasteful number, since it uses less digits than its factorization.

1231012330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118794.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1231012330 is about 35085.7852983227. The cubic root of 1231012330 is about 1071.7351327554.

Adding to 1231012330 its reverse (332101321), we get a palindrome (1563113651).

The spelling of 1231012330 in words is "one billion, two hundred thirty-one million, twelve thousand, three hundred thirty".