23100180661 has 2 divisors, whose sum is σ = 23100180662. Its totient is φ = 23100180660.

The previous prime is 23100180611. The next prime is 23100180671. The reversal of 23100180661 is 16608100132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22106039761 + 994140900 = 148681^2 + 31530^2 .

It is a cyclic number.

It is not a de Polignac number, because 23100180661 - 2²¹ = 23098083509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23100180611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550090330 + 11550090331.

It is an arithmetic number, because the mean of its divisors is an integer number (11550090331).

Almost surely, 2^23100180661 is an apocalyptic number.

It is an amenable number.

23100180661 is a deficient number, since it is larger than the sum of its proper divisors (1).

23100180661 is an equidigital number, since it uses as much as digits as its factorization.

23100180661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 23100180661 its reverse (16608100132), we get a palindrome (39708280793).

The spelling of 23100180661 in words is "twenty-three billion, one hundred million, one hundred eighty thousand, six hundred sixty-one".