12311351002 has 4 divisors (see below), whose sum is σ = 18467026506. Its totient is φ = 6155675500.

The previous prime is 12311350999. The next prime is 12311351011. The reversal of 12311351002 is 20015311321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11547436681 + 763914321 = 107459^2 + 27639^2 .

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 as a sum of consecutive naturals, namely, 3077837749 + ... + 3077837752.

Almost surely, 2^12311351002 is an apocalyptic number.

12311351002 is a deficient number, since it is larger than the sum of its proper divisors (6155675504).

12311351002 is an equidigital number, since it uses as much as digits as its factorization.

12311351002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155675503.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 12311351002 its reverse (20015311321), we get a palindrome (32326662323).

The spelling of 12311351002 in words is "twelve billion, three hundred eleven million, three hundred fifty-one thousand, two".