1230043555 has 16 divisors (see below), whose sum is σ = 1644410880. Its totient is φ = 877016448.

The previous prime is 1230043511. The next prime is 1230043571. The reversal of 1230043555 is 5553400321.

It is a cyclic number.

It is not a de Polignac number, because 1230043555 - 2¹⁷ = 1229912483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324387 + ... + 328156.

It is an arithmetic number, because the mean of its divisors is an integer number (102775680).

Almost surely, 2^1230043555 is an apocalyptic number.

1230043555 is a deficient number, since it is larger than the sum of its proper divisors (414367325).

1230043555 is a wasteful number, since it uses less digits than its factorization.

1230043555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652590.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 1230043555 is about 35071.9767763381. The cubic root of 1230043555 is about 1071.4539163232.

Adding to 1230043555 its reverse (5553400321), we get a palindrome (6783443876).

It can be divided in two parts, 12300 and 43555, that added together give a palindrome (55855).

The spelling of 1230043555 in words is "one billion, two hundred thirty million, forty-three thousand, five hundred fifty-five".