1101205423 has 2 divisors, whose sum is σ = 1101205424. Its totient is φ = 1101205422.

The previous prime is 1101205403. The next prime is 1101205493. The reversal of 1101205423 is 3245021011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101205423 - 2⁹ = 1101204911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101205423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101205403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550602711 + 550602712.

It is an arithmetic number, because the mean of its divisors is an integer number (550602712).

Almost surely, 2^1101205423 is an apocalyptic number.

1101205423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101205423 is an equidigital number, since it uses as much as digits as its factorization.

1101205423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1101205423 is about 33184.4153632394. The cubic root of 1101205423 is about 1032.6570487716.

Adding to 1101205423 its reverse (3245021011), we get a palindrome (4346226434).

The spelling of 1101205423 in words is "one billion, one hundred one million, two hundred five thousand, four hundred twenty-three".