2231032312 has 8 divisors (see below), whose sum is σ = 4183185600. Its totient is φ = 1115516152.

The previous prime is 2231032303. The next prime is 2231032319. The reversal of 2231032312 is 2132301322.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×2231032312³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231032312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231032319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139439512 + ... + 139439527.

It is an arithmetic number, because the mean of its divisors is an integer number (522898200).

Almost surely, 2^2231032312 is an apocalyptic number.

It is an amenable number.

2231032312 is a deficient number, since it is larger than the sum of its proper divisors (1952153288).

2231032312 is a wasteful number, since it uses less digits than its factorization.

2231032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278879045 (or 278879041 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2231032312 is about 47233.8047588801. The cubic root of 2231032312 is about 1306.6781231931.

Adding to 2231032312 its reverse (2132301322), we get a palindrome (4363333634).

The spelling of 2231032312 in words is "two billion, two hundred thirty-one million, thirty-two thousand, three hundred twelve".