1232312211 has 40 divisors (see below), whose sum is σ = 2002267344. Its totient is φ = 750772800.

The previous prime is 1232312209. The next prime is 1232312219. The reversal of 1232312211 is 1122132321.

It is not a de Polignac number, because 1232312211 - 2¹ = 1232312209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232312219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 100560 + ... + 112146.

Almost surely, 2^1232312211 is an apocalyptic number.

1232312211 is a deficient number, since it is larger than the sum of its proper divisors (769955133).

1232312211 is a wasteful number, since it uses less digits than its factorization.

1232312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11713 (or 11704 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1232312211 is about 35104.3047360292. The cubic root of 1232312211 is about 1072.1122310818.

Adding to 1232312211 its reverse (1122132321), we get a palindrome (2354444532).

The spelling of 1232312211 in words is "one billion, two hundred thirty-two million, three hundred twelve thousand, two hundred eleven".