1205470011 has 4 divisors (see below), whose sum is σ = 1607293352. Its totient is φ = 803646672.

The previous prime is 1205470009. The next prime is 1205470031. The reversal of 1205470011 is 1100745021.

It is a happy number.

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

It is not a de Polignac number, because 1205470011 - 2¹ = 1205470009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1205470011.

It is not an unprimeable number, because it can be changed into a prime (1205470031) 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, 200911666 + ... + 200911671.

It is an arithmetic number, because the mean of its divisors is an integer number (401823338).

Almost surely, 2^1205470011 is an apocalyptic number.

1205470011 is a deficient number, since it is larger than the sum of its proper divisors (401823341).

1205470011 is an equidigital number, since it uses as much as digits as its factorization.

1205470011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401823340.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 1205470011 is about 34719.8791904580. The cubic root of 1205470011 is about 1064.2707759012.

The spelling of 1205470011 in words is "one billion, two hundred five million, four hundred seventy thousand, eleven".