23231073647 has 2 divisors, whose sum is σ = 23231073648. Its totient is φ = 23231073646.

The previous prime is 23231073643. The next prime is 23231073683. The reversal of 23231073647 is 74637013232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23231073647 - 2² = 23231073643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23231073647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23231073643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615536823 + 11615536824.

It is an arithmetic number, because the mean of its divisors is an integer number (11615536824).

Almost surely, 2^23231073647 is an apocalyptic number.

23231073647 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231073647 is an equidigital number, since it uses as much as digits as its factorization.

23231073647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 38.

Adding to 23231073647 its reverse (74637013232), we get a palindrome (97868086879).

The spelling of 23231073647 in words is "twenty-three billion, two hundred thirty-one million, seventy-three thousand, six hundred forty-seven".