1213003066 has 16 divisors (see below), whose sum is σ = 2018558880. Its totient is φ = 542019280.

The previous prime is 1213003063. The next prime is 1213003067. The reversal of 1213003066 is 6603003121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1213003063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465961 + ... + 468556.

It is an arithmetic number, because the mean of its divisors is an integer number (126159930).

Almost surely, 2^1213003066 is an apocalyptic number.

1213003066 is a deficient number, since it is larger than the sum of its proper divisors (805555814).

1213003066 is a wasteful number, since it uses less digits than its factorization.

1213003066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934589.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1213003066 is about 34828.1935506279. The cubic root of 1213003066 is about 1066.4830715046.

Adding to 1213003066 its reverse (6603003121), we get a palindrome (7816006187).

The spelling of 1213003066 in words is "one billion, two hundred thirteen million, three thousand, sixty-six".