230171331155477 has 4 divisors (see below), whose sum is σ = 230216578129536. Its totient is φ = 230126084181420.

The previous prime is 230171331155461. The next prime is 230171331155503. The reversal of 230171331155477 is 774551133171032.

230171331155477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230171331155477 - 2⁴ = 230171331155461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230171331157477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22623479399 + ... + 22623489572.

It is an arithmetic number, because the mean of its divisors is an integer number (57554144532384).

Almost surely, 2^{230171331155477} is an apocalyptic number.

It is an amenable number.

230171331155477 is a deficient number, since it is larger than the sum of its proper divisors (45246974059).

230171331155477 is an equidigital number, since it uses as much as digits as its factorization.

230171331155477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45246974058.

The product of its (nonzero) digits is 1852200, while the sum is 50.

The spelling of 230171331155477 in words is "two hundred thirty trillion, one hundred seventy-one billion, three hundred thirty-one million, one hundred fifty-five thousand, four hundred seventy-seven".