12320001011 has 8 divisors (see below), whose sum is σ = 12508473600. Its totient is φ = 12131943880.

The previous prime is 12320000981. The next prime is 12320001019. The reversal of 12320001011 is 11010002321.

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

It is a cyclic number.

It is not a de Polignac number, because 12320001011 - 2⁶ = 12320000947 is a prime.

It is a super-2 number, since 2×12320001011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12320000983 and 12320001001.

It is not an unprimeable number, because it can be changed into a prime (12320001019) 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, 43841 + ... + 162978.

It is an arithmetic number, because the mean of its divisors is an integer number (1563559200).

Almost surely, 2^12320001011 is an apocalyptic number.

12320001011 is a deficient number, since it is larger than the sum of its proper divisors (188472589).

12320001011 is an equidigital number, since it uses as much as digits as its factorization.

12320001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207729.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12320001011 its reverse (11010002321), we get a palindrome (23330003332).

The spelling of 12320001011 in words is "twelve billion, three hundred twenty million, one thousand, eleven".