1213333102011 has 4 divisors (see below), whose sum is σ = 1617777469352. Its totient is φ = 808888734672.

The previous prime is 1213333102001. The next prime is 1213333102027. The reversal of 1213333102011 is 1102013333121.

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 1213333102011 - 2⁵ = 1213333101979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213333102001) 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, 202222183666 + ... + 202222183671.

It is an arithmetic number, because the mean of its divisors is an integer number (404444367338).

Almost surely, 2^{1213333102011} is an apocalyptic number.

1213333102011 is a deficient number, since it is larger than the sum of its proper divisors (404444367341).

1213333102011 is an equidigital number, since it uses as much as digits as its factorization.

1213333102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404444367340.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1213333102011 its reverse (1102013333121), we get a palindrome (2315346435132).

The spelling of 1213333102011 in words is "one trillion, two hundred thirteen billion, three hundred thirty-three million, one hundred two thousand, eleven".