1230355555 has 16 divisors (see below), whose sum is σ = 1734544224. Its totient is φ = 825972480.

The previous prime is 1230355549. The next prime is 1230355571. The reversal of 1230355555 is 5555530321.

It is not a de Polignac number, because 1230355555 - 2³ = 1230355547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230355555.

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, 859674 + ... + 861103.

It is an arithmetic number, because the mean of its divisors is an integer number (108409014).

Almost surely, 2^1230355555 is an apocalyptic number.

1230355555 is a deficient number, since it is larger than the sum of its proper divisors (504188669).

1230355555 is a wasteful number, since it uses less digits than its factorization.

1230355555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720806.

The product of its (nonzero) digits is 56250, while the sum is 34.

The square root of 1230355555 is about 35076.4244899619. The cubic root of 1230355555 is about 1071.5444999344.

Adding to 1230355555 its reverse (5555530321), we get a palindrome (6785885876).

The spelling of 1230355555 in words is "one billion, two hundred thirty million, three hundred fifty-five thousand, five hundred fifty-five".