1230311331 has 24 divisors (see below), whose sum is σ = 1863763200. Its totient is φ = 780577776.

The previous prime is 1230311321. The next prime is 1230311333. The reversal of 1230311331 is 1331130321.

It is a happy number.

1230311331 is a `hidden beast` number, since 1 + 23 + 0 + 311 + 331 = 666.

It is not a de Polignac number, because 1230311331 - 2¹⁰ = 1230310307 is a prime.

It is a super-2 number, since 2×1230311331² = 3027331942373983122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1230311333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26260 + ... + 56126.

It is an arithmetic number, because the mean of its divisors is an integer number (77656800).

Almost surely, 2^1230311331 is an apocalyptic number.

1230311331 is a deficient number, since it is larger than the sum of its proper divisors (633451869).

1230311331 is a wasteful number, since it uses less digits than its factorization.

1230311331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30095 (or 30092 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1230311331 is about 35075.7940893717. The cubic root of 1230311331 is about 1071.5316612197.

Adding to 1230311331 its reverse (1331130321), we get a palindrome (2561441652).

The spelling of 1230311331 in words is "one billion, two hundred thirty million, three hundred eleven thousand, three hundred thirty-one".