231064550320547 has 2 divisors, whose sum is σ = 231064550320548. Its totient is φ = 231064550320546.

The previous prime is 231064550320501. The next prime is 231064550320589. The reversal of 231064550320547 is 745023055460132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231064550320547 - 2²⁰ = 231064549271971 is a prime.

It is not a weakly prime, because it can be changed into another prime (231060550320547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115532275160273 + 115532275160274.

It is an arithmetic number, because the mean of its divisors is an integer number (115532275160274).

Almost surely, 2^{231064550320547} is an apocalyptic number.

231064550320547 is a deficient number, since it is larger than the sum of its proper divisors (1).

231064550320547 is an equidigital number, since it uses as much as digits as its factorization.

231064550320547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 231064550320547 in words is "two hundred thirty-one trillion, sixty-four billion, five hundred fifty million, three hundred twenty thousand, five hundred forty-seven".