20212010312231 has 2 divisors, whose sum is σ = 20212010312232. Its totient is φ = 20212010312230.

The previous prime is 20212010312213. The next prime is 20212010312399. The reversal of 20212010312231 is 13221301021202.

Together with previous prime (20212010312213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212010312231 is a prime.

It is a super-2 number, since 2×20212010312231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212010312731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106005156115 + 10106005156116.

It is an arithmetic number, because the mean of its divisors is an integer number (10106005156116).

Almost surely, 2^{20212010312231} is an apocalyptic number.

20212010312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212010312231 is an equidigital number, since it uses as much as digits as its factorization.

20212010312231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20212010312231 its reverse (13221301021202), we get a palindrome (33433311333433).

The spelling of 20212010312231 in words is "twenty trillion, two hundred twelve billion, ten million, three hundred twelve thousand, two hundred thirty-one".