21302010313031 has 16 divisors (see below), whose sum is σ = 25365346560000. Its totient is φ = 17504731311840.

The previous prime is 21302010313007. The next prime is 21302010313049. The reversal of 21302010313031 is 13031301020312.

It is a cyclic number.

It is not a de Polignac number, because 21302010313031 - 2¹⁴ = 21302010296647 is a prime.

It is a super-2 number, since 2×21302010313031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21302010312994 and 21302010313012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302010313091) 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, 458696156 + ... + 458742593.

It is an arithmetic number, because the mean of its divisors is an integer number (1585334160000).

Almost surely, 2^{21302010313031} is an apocalyptic number.

21302010313031 is a deficient number, since it is larger than the sum of its proper divisors (4063336246969).

21302010313031 is a wasteful number, since it uses less digits than its factorization.

21302010313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917438894.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21302010313031 its reverse (13031301020312), we get a palindrome (34333311333343).

The spelling of 21302010313031 in words is "twenty-one trillion, three hundred two billion, ten million, three hundred thirteen thousand, thirty-one".