231070777027 has 4 divisors (see below), whose sum is σ = 232488389320. Its totient is φ = 229653164736.

The previous prime is 231070777013. The next prime is 231070777039. The reversal of 231070777027 is 720777070132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231070777027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231070777127) 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, 708805902 + ... + 708806227.

It is an arithmetic number, because the mean of its divisors is an integer number (58122097330).

Almost surely, 2^231070777027 is an apocalyptic number.

231070777027 is a deficient number, since it is larger than the sum of its proper divisors (1417612293).

231070777027 is a wasteful number, since it uses less digits than its factorization.

231070777027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417612292.

The product of its (nonzero) digits is 201684, while the sum is 43.

The spelling of 231070777027 in words is "two hundred thirty-one billion, seventy million, seven hundred seventy-seven thousand, twenty-seven".