21013311302 has 8 divisors (see below), whose sum is σ = 31728708912. Its totient is φ = 10437075000.

The previous prime is 21013311259. The next prime is 21013311311. The reversal of 21013311302 is 20311331012.

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

It is a congruent number.

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, 34789949 + ... + 34790552.

It is an arithmetic number, because the mean of its divisors is an integer number (3966088614).

Almost surely, 2^21013311302 is an apocalyptic number.

21013311302 is a deficient number, since it is larger than the sum of its proper divisors (10715397610).

21013311302 is a wasteful number, since it uses less digits than its factorization.

21013311302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69580654.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21013311302 its reverse (20311331012), we get a palindrome (41324642314).

The spelling of 21013311302 in words is "twenty-one billion, thirteen million, three hundred eleven thousand, three hundred two".