21313311001302 has 16 divisors (see below), whose sum is σ = 42657668357040. Its totient is φ = 7099262608032.

The previous prime is 21313311001291. The next prime is 21313311001303. The reversal of 21313311001302 is 20310011331312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313311001303) 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, 1293589177 + ... + 1293605652.

It is an arithmetic number, because the mean of its divisors is an integer number (2666104272315).

Almost surely, 2^{21313311001302} is an apocalyptic number.

21313311001302 is an abundant number, since it is smaller than the sum of its proper divisors (21344357355738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21313311001302 is a wasteful number, since it uses less digits than its factorization.

21313311001302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587196207.

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

Adding to 21313311001302 its reverse (20310011331312), we get a palindrome (41623322332614).

The spelling of 21313311001302 in words is "twenty-one trillion, three hundred thirteen billion, three hundred eleven million, one thousand, three hundred two".