231064550320501 has 2 divisors, whose sum is σ = 231064550320502. Its totient is φ = 231064550320500.

The previous prime is 231064550320493. The next prime is 231064550320547. The reversal of 231064550320501 is 105023055460132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212396404278276 + 18668146042225 = 14573826^2 + 4320665^2 .

It is a cyclic number.

It is not a de Polignac number, because 231064550320501 - 2³ = 231064550320493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231064550323501) 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, 115532275160250 + 115532275160251.

It is an arithmetic number, because the mean of its divisors is an integer number (115532275160251).

Almost surely, 2^{231064550320501} is an apocalyptic number.

It is an amenable number.

231064550320501 is a deficient number, since it is larger than the sum of its proper divisors (1).

231064550320501 is an equidigital number, since it uses as much as digits as its factorization.

231064550320501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 231064550320501 in words is "two hundred thirty-one trillion, sixty-four billion, five hundred fifty million, three hundred twenty thousand, five hundred one".