1213200011011 has 8 divisors (see below), whose sum is σ = 1242897907104. Its totient is φ = 1183507241280.

The previous prime is 1213200011003. The next prime is 1213200011053. The reversal of 1213200011011 is 1101100023121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1213200011011 - 2³ = 1213200011003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213200010982 and 1213200011000.

It is not an unprimeable number, because it can be changed into a prime (1213200011081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800295 + ... + 1751248.

It is an arithmetic number, because the mean of its divisors is an integer number (155362238388).

Almost surely, 2^{1213200011011} is an apocalyptic number.

1213200011011 is a deficient number, since it is larger than the sum of its proper divisors (29697896093).

1213200011011 is a wasteful number, since it uses less digits than its factorization.

1213200011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563181.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1213200011011 its reverse (1101100023121), we get a palindrome (2314300034132).

The spelling of 1213200011011 in words is "one trillion, two hundred thirteen billion, two hundred million, eleven thousand, eleven".