220123933 has 2 divisors, whose sum is σ = 220123934. Its totient is φ = 220123932.

The previous prime is 220123921. The next prime is 220123951. The reversal of 220123933 is 339321022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201270969 + 18852964 = 14187^2 + 4342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220123933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220123898 and 220123907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220123333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061966 + 110061967.

It is an arithmetic number, because the mean of its divisors is an integer number (110061967).

Almost surely, 2^220123933 is an apocalyptic number.

It is an amenable number.

220123933 is a deficient number, since it is larger than the sum of its proper divisors (1).

220123933 is an equidigital number, since it uses as much as digits as its factorization.

220123933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 220123933 is about 14836.5741665655. The cubic root of 220123933 is about 603.7944099861.

Adding to 220123933 its reverse (339321022), we get a palindrome (559444955).

The spelling of 220123933 in words is "two hundred twenty million, one hundred twenty-three thousand, nine hundred thirty-three".