21311130002 has 8 divisors (see below), whose sum is σ = 32000668812. Its totient is φ = 10644240400.

The previous prime is 21311129963. The next prime is 21311130013. The reversal of 21311130002 is 20003111312.

It can be written as a sum of positive squares in 2 ways, for example, as 21260847721 + 50282281 = 145811^2 + 7091^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5659949 + ... + 5663712.

Almost surely, 2^21311130002 is an apocalyptic number.

21311130002 is a deficient number, since it is larger than the sum of its proper divisors (10689538810).

21311130002 is a wasteful number, since it uses less digits than its factorization.

21311130002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11324604.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21311130002 its reverse (20003111312), we get a palindrome (41314241314).

The spelling of 21311130002 in words is "twenty-one billion, three hundred eleven million, one hundred thirty thousand, two".