23231547077 has 4 divisors (see below), whose sum is σ = 23315415756. Its totient is φ = 23147678400.

The previous prime is 23231547071. The next prime is 23231547107. The reversal of 23231547077 is 77074513232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10809552961 + 12421994116 = 103969^2 + 111454^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231547077 - 2⁴ = 23231547061 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 (23231547071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41933924 + ... + 41934477.

It is an arithmetic number, because the mean of its divisors is an integer number (5828853939).

Almost surely, 2^23231547077 is an apocalyptic number.

It is an amenable number.

23231547077 is a deficient number, since it is larger than the sum of its proper divisors (83868679).

23231547077 is an equidigital number, since it uses as much as digits as its factorization.

23231547077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83868678.

The product of its (nonzero) digits is 246960, while the sum is 41.

The spelling of 23231547077 in words is "twenty-three billion, two hundred thirty-one million, five hundred forty-seven thousand, seventy-seven".