61120243666023 has 4 divisors (see below), whose sum is σ = 81493658221368. Its totient is φ = 40746829110680.

The previous prime is 61120243666019. The next prime is 61120243666039. The reversal of 61120243666023 is 32066634202116.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61120243666023 - 2² = 61120243666019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61120243667023) 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, 10186707277668 + ... + 10186707277673.

It is an arithmetic number, because the mean of its divisors is an integer number (20373414555342).

Almost surely, 2^{61120243666023} is an apocalyptic number.

61120243666023 is a deficient number, since it is larger than the sum of its proper divisors (20373414555345).

61120243666023 is a wasteful number, since it uses less digits than its factorization.

61120243666023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20373414555344.

The product of its (nonzero) digits is 373248, while the sum is 42.

Adding to 61120243666023 its reverse (32066634202116), we get a palindrome (93186877868139).

The spelling of 61120243666023 in words is "sixty-one trillion, one hundred twenty billion, two hundred forty-three million, six hundred sixty-six thousand, twenty-three".