21103011311313 has 8 divisors (see below), whose sum is σ = 28280177595648. Its totient is φ = 13997259617264.

The previous prime is 21103011311311. The next prime is 21103011311323. The reversal of 21103011311313 is 31311311030112.

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

It is a cyclic number.

It is not a de Polignac number, because 21103011311313 - 2¹ = 21103011311311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21103011311313.

It is not an unprimeable number, because it can be changed into a prime (21103011311311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17853646881 + ... + 17853648062.

It is an arithmetic number, because the mean of its divisors is an integer number (3535022199456).

Almost surely, 2^{21103011311313} is an apocalyptic number.

It is an amenable number.

21103011311313 is a deficient number, since it is larger than the sum of its proper divisors (7177166284335).

21103011311313 is a wasteful number, since it uses less digits than its factorization.

21103011311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35707295143.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 21103011311313 its reverse (31311311030112), we get a palindrome (52414322341425).

The spelling of 21103011311313 in words is "twenty-one trillion, one hundred three billion, eleven million, three hundred eleven thousand, three hundred thirteen".