231331301011 has 2 divisors, whose sum is σ = 231331301012. Its totient is φ = 231331301010.

The previous prime is 231331300969. The next prime is 231331301051. The reversal of 231331301011 is 110103133132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231331301011 - 2¹¹ = 231331298963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231331301011.

It is not a weakly prime, because it can be changed into another prime (231331301051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115665650505 + 115665650506.

It is an arithmetic number, because the mean of its divisors is an integer number (115665650506).

Almost surely, 2^231331301011 is an apocalyptic number.

231331301011 is a deficient number, since it is larger than the sum of its proper divisors (1).

231331301011 is an equidigital number, since it uses as much as digits as its factorization.

231331301011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 231331301011 its reverse (110103133132), we get a palindrome (341434434143).

The spelling of 231331301011 in words is "two hundred thirty-one billion, three hundred thirty-one million, three hundred one thousand, eleven".