1232312312 has 128 divisors (see below), whose sum is σ = 3013977600. Its totient is φ = 458304000.

The previous prime is 1232312297. The next prime is 1232312329. The reversal of 1232312312 is 2132132321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1803923 + ... + 1804605.

It is an arithmetic number, because the mean of its divisors is an integer number (23546700).

Almost surely, 2^1232312312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232312312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1506988800).

1232312312 is an abundant number, since it is smaller than the sum of its proper divisors (1781665288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232312312 is a wasteful number, since it uses less digits than its factorization.

1232312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 833 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1232312312 is about 35104.3061745991. The cubic root of 1232312312 is about 1072.1122603718.

Adding to 1232312312 its reverse (2132132321), we get a palindrome (3364444633).

Subtracting 1232312312 from its reverse (2132132321), we obtain a square (899820009 = 29997²).

The spelling of 1232312312 in words is "one billion, two hundred thirty-two million, three hundred twelve thousand, three hundred twelve".