61101223 has 2 divisors, whose sum is σ = 61101224. Its totient is φ = 61101222.

The previous prime is 61101211. The next prime is 61101239. The reversal of 61101223 is 32210116.

61101223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (61101239) can be obtained adding 61101223 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61101223 - 2⁵ = 61101191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61101197 and 61101206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61104223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30550611 + 30550612.

It is an arithmetic number, because the mean of its divisors is an integer number (30550612).

Almost surely, 2^61101223 is an apocalyptic number.

61101223 is a deficient number, since it is larger than the sum of its proper divisors (1).

61101223 is an equidigital number, since it uses as much as digits as its factorization.

61101223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 61101223 is about 7816.7271284087. The cubic root of 61101223 is about 393.8673379028.

Adding to 61101223 its reverse (32210116), we get a palindrome (93311339).

The spelling of 61101223 in words is "sixty-one million, one hundred one thousand, two hundred twenty-three".