1320012231 has 8 divisors (see below), whose sum is σ = 1760187264. Its totient is φ = 879922680.

The previous prime is 1320012217. The next prime is 1320012257. The reversal of 1320012231 is 1322100231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320012231 - 2⁶ = 1320012167 is a prime.

It is a super-2 number, since 2×1320012231² = 3484864579979194722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1320012231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320012731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39150 + ... + 64596.

It is an arithmetic number, because the mean of its divisors is an integer number (220023408).

Almost surely, 2^1320012231 is an apocalyptic number.

1320012231 is a deficient number, since it is larger than the sum of its proper divisors (440175033).

1320012231 is a wasteful number, since it uses less digits than its factorization.

1320012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42741.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1320012231 is about 36331.9725723776. The cubic root of 1320012231 is about 1096.9646985907.

Adding to 1320012231 its reverse (1322100231), we get a palindrome (2642112462).

The spelling of 1320012231 in words is "one billion, three hundred twenty million, twelve thousand, two hundred thirty-one".