231050120311 has 2 divisors, whose sum is σ = 231050120312. Its totient is φ = 231050120310.

The previous prime is 231050120309. The next prime is 231050120347. The reversal of 231050120311 is 113021050132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231050120311 - 2¹ = 231050120309 is a prime.

Together with 231050120309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231050121311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115525060155 + 115525060156.

It is an arithmetic number, because the mean of its divisors is an integer number (115525060156).

Almost surely, 2^231050120311 is an apocalyptic number.

231050120311 is a deficient number, since it is larger than the sum of its proper divisors (1).

231050120311 is an equidigital number, since it uses as much as digits as its factorization.

231050120311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 231050120311 its reverse (113021050132), we get a palindrome (344071170443).

The spelling of 231050120311 in words is "two hundred thirty-one billion, fifty million, one hundred twenty thousand, three hundred eleven".