21130311002 has 8 divisors (see below), whose sum is σ = 33073530336. Its totient is φ = 10105800892.

The previous prime is 21130310969. The next prime is 21130311011. The reversal of 21130311002 is 20011303112.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229677248 + ... + 229677339.

It is an arithmetic number, because the mean of its divisors is an integer number (4134191292).

Almost surely, 2^21130311002 is an apocalyptic number.

21130311002 is a deficient number, since it is larger than the sum of its proper divisors (11943219334).

21130311002 is a wasteful number, since it uses less digits than its factorization.

21130311002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459354612.

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

Adding to 21130311002 its reverse (20011303112), we get a palindrome (41141614114).

The spelling of 21130311002 in words is "twenty-one billion, one hundred thirty million, three hundred eleven thousand, two".