21011230013302 has 4 divisors (see below), whose sum is σ = 31516845019956. Its totient is φ = 10505615006650.

The previous prime is 21011230013287. The next prime is 21011230013327. The reversal of 21011230013302 is 20331003211012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21011230013302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5252807503324 + ... + 5252807503327.

It is an arithmetic number, because the mean of its divisors is an integer number (7879211254989).

Almost surely, 2^{21011230013302} is an apocalyptic number.

21011230013302 is a deficient number, since it is larger than the sum of its proper divisors (10505615006654).

21011230013302 is a wasteful number, since it uses less digits than its factorization.

21011230013302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505615006653.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21011230013302 its reverse (20331003211012), we get a palindrome (41342233224314).

The spelling of 21011230013302 in words is "twenty-one trillion, eleven billion, two hundred thirty million, thirteen thousand, three hundred two".