1230043311 has 24 divisors (see below), whose sum is σ = 2039516544. Its totient is φ = 699777360.

The previous prime is 1230043301. The next prime is 1230043411. The reversal of 1230043311 is 1133400321.

1230043311 is a `hidden beast` number, since 1 + 230 + 0 + 433 + 1 + 1 = 666.

1230043311 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1230043311 - 2²³ = 1221654703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230043301) 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, 28705 + ... + 57306.

It is an arithmetic number, because the mean of its divisors is an integer number (84979856).

Almost surely, 2^1230043311 is an apocalyptic number.

1230043311 is a deficient number, since it is larger than the sum of its proper divisors (809473233).

1230043311 is a wasteful number, since it uses less digits than its factorization.

1230043311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86251 (or 86248 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1230043311 is about 35071.9732977772. The cubic root of 1230043311 is about 1071.4538454762.

Adding to 1230043311 its reverse (1133400321), we get a palindrome (2363443632).

It can be divided in two parts, 12300 and 43311, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 1230043311 in words is "one billion, two hundred thirty million, forty-three thousand, three hundred eleven".