21313023023101 has 12 divisors (see below), whose sum is σ = 23252382559828. Its totient is φ = 19517172106752.

The previous prime is 21313023023087. The next prime is 21313023023113. The reversal of 21313023023101 is 10132032031312.

It can be written as a sum of positive squares in 6 ways, for example, as 843506317476 + 20469516705625 = 918426^2 + 4524325^2 .

It is not a de Polignac number, because 21313023023101 - 2⁹ = 21313023022589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313023023401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 996576936 + ... + 996598321.

Almost surely, 2^{21313023023101} is an apocalyptic number.

It is an amenable number.

21313023023101 is a deficient number, since it is larger than the sum of its proper divisors (1939359536727).

21313023023101 is a wasteful number, since it uses less digits than its factorization.

21313023023101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993175328 (or 1993175311 counting only the distinct ones).

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

Adding to 21313023023101 its reverse (10132032031312), we get a palindrome (31445055054413).

The spelling of 21313023023101 in words is "twenty-one trillion, three hundred thirteen billion, twenty-three million, twenty-three thousand, one hundred one".