1200530331 has 72 divisors (see below), whose sum is σ = 2370002544. Its totient is φ = 575648640.

The previous prime is 1200530329. The next prime is 1200530341. The reversal of 1200530331 is 1330350021.

It is not a de Polignac number, because 1200530331 - 2¹ = 1200530329 is a prime.

It is a super-2 number, since 2×1200530331² = 2882546151301939122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200530311) 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 71 ways as a sum of consecutive naturals, for example, 53545 + ... + 72581.

It is an arithmetic number, because the mean of its divisors is an integer number (32916702).

Almost surely, 2^1200530331 is an apocalyptic number.

1200530331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200530331 is a deficient number, since it is larger than the sum of its proper divisors (1169472213).

1200530331 is a wasteful number, since it uses less digits than its factorization.

1200530331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19081 (or 19071 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 1200530331 is about 34648.6699744738. The cubic root of 1200530331 is about 1062.8150907886.

Adding to 1200530331 its reverse (1330350021), we get a palindrome (2530880352).

The spelling of 1200530331 in words is "one billion, two hundred million, five hundred thirty thousand, three hundred thirty-one".