212230312031 has 2 divisors, whose sum is σ = 212230312032. Its totient is φ = 212230312030.

The previous prime is 212230312001. The next prime is 212230312081. The reversal of 212230312031 is 130213032212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212230312031 - 2¹⁸ = 212230049887 is a prime.

It is a super-2 number, since 2×212230312031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212230311994 and 212230312012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212230312001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106115156015 + 106115156016.

It is an arithmetic number, because the mean of its divisors is an integer number (106115156016).

Almost surely, 2^212230312031 is an apocalyptic number.

212230312031 is a deficient number, since it is larger than the sum of its proper divisors (1).

212230312031 is an equidigital number, since it uses as much as digits as its factorization.

212230312031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212230312031 its reverse (130213032212), we get a palindrome (342443344243).

The spelling of 212230312031 in words is "two hundred twelve billion, two hundred thirty million, three hundred twelve thousand, thirty-one".