21113002013313 has 32 divisors (see below), whose sum is σ = 32533691686912. Its totient is φ = 11929365201600.

The previous prime is 21113002013231. The next prime is 21113002013413. The reversal of 21113002013313 is 31331020031112.

It is a happy number.

It is not a de Polignac number, because 21113002013313 - 2¹² = 21113002009217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21113002013313.

It is not an unprimeable number, because it can be changed into a prime (21113002013413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5953753 + ... + 8813238.

It is an arithmetic number, because the mean of its divisors is an integer number (1016677865216).

Almost surely, 2^{21113002013313} is an apocalyptic number.

It is an amenable number.

21113002013313 is a deficient number, since it is larger than the sum of its proper divisors (11420689673599).

21113002013313 is a wasteful number, since it uses less digits than its factorization.

21113002013313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14767765.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 21113002013313 its reverse (31331020031112), we get a palindrome (52444022044425).

The spelling of 21113002013313 in words is "twenty-one trillion, one hundred thirteen billion, two million, thirteen thousand, three hundred thirteen".