23211307471633 has 2 divisors, whose sum is σ = 23211307471634. Its totient is φ = 23211307471632.

The previous prime is 23211307471609. The next prime is 23211307471637. The reversal of 23211307471633 is 33617470311232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23049869856784 + 161437614849 = 4801028^2 + 401793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23211307471633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23211307471633.

It is not a weakly prime, because it can be changed into another prime (23211307471637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605653735816 + 11605653735817.

It is an arithmetic number, because the mean of its divisors is an integer number (11605653735817).

Almost surely, 2^{23211307471633} is an apocalyptic number.

It is an amenable number.

23211307471633 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211307471633 is an equidigital number, since it uses as much as digits as its factorization.

23211307471633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 43.

Adding to 23211307471633 its reverse (33617470311232), we get a palindrome (56828777782865).

The spelling of 23211307471633 in words is "twenty-three trillion, two hundred eleven billion, three hundred seven million, four hundred seventy-one thousand, six hundred thirty-three".