201261223 has 2 divisors, whose sum is σ = 201261224. Its totient is φ = 201261222.

The previous prime is 201261217. The next prime is 201261253. The reversal of 201261223 is 322162102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201261223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201261223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201261253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100630611 + 100630612.

It is an arithmetic number, because the mean of its divisors is an integer number (100630612).

Almost surely, 2^201261223 is an apocalyptic number.

201261223 is a deficient number, since it is larger than the sum of its proper divisors (1).

201261223 is an equidigital number, since it uses as much as digits as its factorization.

201261223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 201261223 is about 14186.6565123711. The cubic root of 201261223 is about 586.0302521395.

The spelling of 201261223 in words is "two hundred one million, two hundred sixty-one thousand, two hundred twenty-three".