21010310232313 has 16 divisors (see below), whose sum is σ = 21934469007360. Its totient is φ = 20087042359824.

The previous prime is 21010310232277. The next prime is 21010310232377. The reversal of 21010310232313 is 31323201301012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21010310232313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010310232013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653635120 + ... + 653667262.

It is an arithmetic number, because the mean of its divisors is an integer number (1370904312960).

Almost surely, 2^{21010310232313} is an apocalyptic number.

21010310232313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21010310232313 is a deficient number, since it is larger than the sum of its proper divisors (924158775047).

21010310232313 is a wasteful number, since it uses less digits than its factorization.

21010310232313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45108.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21010310232313 its reverse (31323201301012), we get a palindrome (52333511533325).

The spelling of 21010310232313 in words is "twenty-one trillion, ten billion, three hundred ten million, two hundred thirty-two thousand, three hundred thirteen".