122732360561 has 4 divisors (see below), whose sum is σ = 122930636400. Its totient is φ = 122534084724.

The previous prime is 122732360533. The next prime is 122732360563. The reversal of 122732360561 is 165063237221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122732360561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122732360563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99136991 + ... + 99138228.

It is an arithmetic number, because the mean of its divisors is an integer number (30732659100).

Almost surely, 2^122732360561 is an apocalyptic number.

It is an amenable number.

122732360561 is a deficient number, since it is larger than the sum of its proper divisors (198275839).

122732360561 is an equidigital number, since it uses as much as digits as its factorization.

122732360561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198275838.

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 122732360561 its reverse (165063237221), we get a palindrome (287795597782).

The spelling of 122732360561 in words is "one hundred twenty-two billion, seven hundred thirty-two million, three hundred sixty thousand, five hundred sixty-one".