23613321161 has 2 divisors, whose sum is σ = 23613321162. Its totient is φ = 23613321160.

The previous prime is 23613321119. The next prime is 23613321167. The reversal of 23613321161 is 16112331632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22988321161 + 625000000 = 151619^2 + 25000^2 .

It is a cyclic number.

It is not a de Polignac number, because 23613321161 - 2²² = 23609126857 is a prime.

It is not a weakly prime, because it can be changed into another prime (23613321167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11806660580 + 11806660581.

It is an arithmetic number, because the mean of its divisors is an integer number (11806660581).

Almost surely, 2^23613321161 is an apocalyptic number.

It is an amenable number.

23613321161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23613321161 is an equidigital number, since it uses as much as digits as its factorization.

23613321161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

Adding to 23613321161 its reverse (16112331632), we get a palindrome (39725652793).

The spelling of 23613321161 in words is "twenty-three billion, six hundred thirteen million, three hundred twenty-one thousand, one hundred sixty-one".