1230020211 has 16 divisors (see below), whose sum is σ = 1874815488. Its totient is φ = 702681600.

The previous prime is 1230020191. The next prime is 1230020249. The reversal of 1230020211 is 1120200321.

It is not a de Polignac number, because 1230020211 - 2⁶ = 1230020147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230020251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127891 + ... + 137171.

It is an arithmetic number, because the mean of its divisors is an integer number (117175968).

Almost surely, 2^1230020211 is an apocalyptic number.

1230020211 is a deficient number, since it is larger than the sum of its proper divisors (644795277).

1230020211 is an equidigital number, since it uses as much as digits as its factorization.

1230020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15602.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1230020211 is about 35071.6439734438. The cubic root of 1230020211 is about 1071.4471381951.

Adding to 1230020211 its reverse (1120200321), we get a palindrome (2350220532).

The spelling of 1230020211 in words is "one billion, two hundred thirty million, twenty thousand, two hundred eleven".