1213003011 has 8 divisors (see below), whose sum is σ = 1764368064. Its totient is φ = 735153320.

The previous prime is 1213003009. The next prime is 1213003013. The reversal of 1213003011 is 1103003121.

It is an interprime number because it is at equal distance from previous prime (1213003009) and next prime (1213003013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1213003011 - 2¹ = 1213003009 is a prime.

It is a super-2 number, since 2×1213003011² = 2942752609390132242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213003013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18378801 + ... + 18378866.

It is an arithmetic number, because the mean of its divisors is an integer number (220546008).

Almost surely, 2^1213003011 is an apocalyptic number.

1213003011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1213003011 is a deficient number, since it is larger than the sum of its proper divisors (551365053).

1213003011 is a wasteful number, since it uses less digits than its factorization.

1213003011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36757681.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1213003011 is about 34828.1927610377. The cubic root of 1213003011 is about 1066.4830553858.

Adding to 1213003011 its reverse (1103003121), we get a palindrome (2316006132).

The spelling of 1213003011 in words is "one billion, two hundred thirteen million, three thousand, eleven".