12311333002 has 4 divisors (see below), whose sum is σ = 18466999506. Its totient is φ = 6155666500.

The previous prime is 12311332997. The next prime is 12311333011. The reversal of 12311333002 is 20033311321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20033311321 = 36761 ⋅544961.

It can be written as a sum of positive squares in only one way, i.e., 12265784001 + 45549001 = 110751^2 + 6749^2 .

It is a super-2 number, since 2×12311333002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077833249 + ... + 3077833252.

Almost surely, 2^12311333002 is an apocalyptic number.

12311333002 is a deficient number, since it is larger than the sum of its proper divisors (6155666504).

12311333002 is an equidigital number, since it uses as much as digits as its factorization.

12311333002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155666503.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12311333002 its reverse (20033311321), we get a palindrome (32344644323).

The spelling of 12311333002 in words is "twelve billion, three hundred eleven million, three hundred thirty-three thousand, two".