1230055211 has 32 divisors (see below), whose sum is σ = 1567764480. Its totient is φ = 937332000.

The previous prime is 1230055159. The next prime is 1230055219. The reversal of 1230055211 is 1125500321.

It is a happy number.

It is not a de Polignac number, because 1230055211 - 2¹⁸ = 1229793067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230055219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 778220 + ... + 779798.

It is an arithmetic number, because the mean of its divisors is an integer number (48992640).

Almost surely, 2^1230055211 is an apocalyptic number.

1230055211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1230055211 is a deficient number, since it is larger than the sum of its proper divisors (337709269).

1230055211 is a wasteful number, since it uses less digits than its factorization.

1230055211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1230055211 is about 35072.1429484997. The cubic root of 1230055211 is about 1071.4573007094.

Adding to 1230055211 its reverse (1125500321), we get a palindrome (2355555532).

The spelling of 1230055211 in words is "one billion, two hundred thirty million, fifty-five thousand, two hundred eleven".