31020202230223 has 2 divisors, whose sum is σ = 31020202230224. Its totient is φ = 31020202230222.

The previous prime is 31020202230221. The next prime is 31020202230229. The reversal of 31020202230223 is 32203220202013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31020202230223 - 2¹ = 31020202230221 is a prime.

Together with 31020202230221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 31020202230194 and 31020202230203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31020202230221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510101115111 + 15510101115112.

It is an arithmetic number, because the mean of its divisors is an integer number (15510101115112).

Almost surely, 2^{31020202230223} is an apocalyptic number.

31020202230223 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020202230223 is an equidigital number, since it uses as much as digits as its factorization.

31020202230223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 31020202230223 its reverse (32203220202013), we get a palindrome (63223422432236).

The spelling of 31020202230223 in words is "thirty-one trillion, twenty billion, two hundred two million, two hundred thirty thousand, two hundred twenty-three".