210231131210231 has 2 divisors, whose sum is σ = 210231131210232. Its totient is φ = 210231131210230.

The previous prime is 210231131210197. The next prime is 210231131210239. The reversal of 210231131210231 is 132012131132012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210231131210231 - 2¹⁸ = 210231130948087 is a prime.

It is a super-2 number, since 2×210231131210231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210231131210197 and 210231131210206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210231131210239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105115565605115 + 105115565605116.

It is an arithmetic number, because the mean of its divisors is an integer number (105115565605116).

Almost surely, 2^{210231131210231} is an apocalyptic number.

210231131210231 is a deficient number, since it is larger than the sum of its proper divisors (1).

210231131210231 is an equidigital number, since it uses as much as digits as its factorization.

210231131210231 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 23.

Adding to 210231131210231 its reverse (132012131132012), we get a palindrome (342243262342243).

The spelling of 210231131210231 in words is "two hundred ten trillion, two hundred thirty-one billion, one hundred thirty-one million, two hundred ten thousand, two hundred thirty-one".