12311220002 has 8 divisors (see below), whose sum is σ = 18469541376. Its totient is φ = 6154706212.

The previous prime is 12311219989. The next prime is 12311220011. The reversal of 12311220002 is 20002211321.

It is a happy number.

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

It is a super-2 number, since 2×12311220002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434738 + ... + 462189.

It is an arithmetic number, because the mean of its divisors is an integer number (2308692672).

Almost surely, 2^12311220002 is an apocalyptic number.

12311220002 is a deficient number, since it is larger than the sum of its proper divisors (6158321374).

12311220002 is an equidigital number, since it uses as much as digits as its factorization.

12311220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903792.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12311220002 its reverse (20002211321), we get a palindrome (32313431323).

The spelling of 12311220002 in words is "twelve billion, three hundred eleven million, two hundred twenty thousand, two".